diff --git a/all.sas b/all.sas
index a4980aa..278fcdc 100644
--- a/all.sas
+++ b/all.sas
@@ -380,7 +380,7 @@ options noquotelenmax;
   @brief Returns the engine type of a SAS library
   @details Usage:
 
-      %put %mf_getEngine(SASHELP);
+      %put %mf_getengine(SASHELP);
 
   returns:
   > V9
@@ -398,9 +398,10 @@ options noquotelenmax;
 
   @version 9.2
   @author Allan Bowe
-**/
 
-%macro mf_getEngine(libref
+**/ /** \cond */
+
+%macro mf_getengine(libref
 )/*/STORE SOURCE*/;
   %local dsid engnum rc engine;
 
@@ -419,7 +420,8 @@ options noquotelenmax;
  &engine
 
 %mend;
-/**
+
+/** \endcond *//**
   @file
   @brief Returns the size of a file in bytes.
   @details Provide full path/filename.extension to the file, eg:
@@ -1955,17 +1957,17 @@ run;
 %mend;/**
   @file
   @brief Returns all files and subdirectories within a specified parent
-  @details When used with getattrs=NO, is not OS specific (uses dopen / dread). 
+  @details When used with getattrs=NO, is not OS specific (uses dopen / dread).
 
   If getattrs=YES then the doptname / foptname functions are used to scan all
-  properties - any characters that are not valid in a SAS name (v7) are simply 
+  properties - any characters that are not valid in a SAS name (v7) are simply
   stripped, and the table is transposed so theat each property is a column
-  and there is one file per row.  An attempt is made to get all properties 
+  and there is one file per row.  An attempt is made to get all properties
   whether a file or folder, but some files/folders cannot be accessed, and so
   not all properties can / will be populated.
 
   Credit for the rename approach:
-  https://communities.sas.com/t5/SAS-Programming/SAS-Function-to-convert-string-to-Legal-SAS-Name/m-p/27375/highlight/true#M5003 
+  https://communities.sas.com/t5/SAS-Programming/SAS-Function-to-convert-string-to-Legal-SAS-Name/m-p/27375/highlight/true#M5003
 
 
   usage:
@@ -1974,21 +1976,25 @@ run;
 
       %mp_dirlist(outds=cwdfileprops, getattrs=YES)
 
-  @warning In a Unix environment, the existence of a named pipe will cause this 
+      %mp_dirlist(fref=MYFREF)
+
+  @warning In a Unix environment, the existence of a named pipe will cause this
   macro to hang.  Therefore this tool should be used with caution in a SAS 9 web
   application, as it can use up all available multibridge sessions if requests
   are resubmitted.
-  If anyone finds a way to positively identify a named pipe using SAS (without 
+  If anyone finds a way to positively identify a named pipe using SAS (without
   X CMD) do please raise an issue!
 
 
   @param path= for which to return contents
+  @param fref= Provide a DISK engine fileref as an alternative to PATH
   @param outds= the output dataset to create
-  @param getattrs= YES/NO (default=NO).  Uses doptname and foptname to return 
-  all attributes for each file / folder.  
+  @param getattrs= YES/NO (default=NO).  Uses doptname and foptname to return
+  all attributes for each file / folder.
 
 
   @returns outds contains the following variables:
+   - directory (containing folder)
    - file_or_folder (file / folder)
    - filepath (path/to/file.name)
    - filename (just the file name)
@@ -2001,18 +2007,26 @@ run;
 **/
 
 %macro mp_dirlist(path=%sysfunc(pathname(work))
+    , fref=0
     , outds=work.mp_dirlist
     , getattrs=NO
 )/*/STORE SOURCE*/;
 %let getattrs=%upcase(&getattrs)XX;
 
-data &outds (compress=no keep=file_or_folder filepath filename ext msg);
-  length filepath $500 fref fref2 $8 file_or_folder $6 filename $80 ext $20 msg $200;
-  rc = filename(fref, "&path");
+data &outds (compress=no keep=file_or_folder filepath filename ext msg directory);
+  length directory filepath $500 fref fref2 $8 file_or_folder $6 filename $80 ext $20 msg $200;
+  %if &fref=0 %then %do;
+    rc = filename(fref, "&path");
+  %end;
+  %else %do;
+    fref="&fref";
+    rc=0;
+  %end;
   if rc = 0 then do;
      did = dopen(fref);
+     directory=dinfo(did,'Directory');
      if did=0 then do;
-        putlog "NOTE: This directory is empty - &path";
+        putlog "NOTE: This directory is empty - " directory;
         msg=sysmsg();
         put _all_;
         stop;
@@ -2027,7 +2041,7 @@ data &outds (compress=no keep=file_or_folder filepath filename ext msg);
   dnum = dnum(did);
   do i = 1 to dnum;
     filename = dread(did, i);
-    rc = filename(fref2, "&path/"!!filename);
+    rc = filename(fref2, cats(directory,'/',filename));
     midd=dopen(fref2);
     dmsg=sysmsg();
     if did > 0 then file_or_folder='folder';
@@ -2036,12 +2050,12 @@ data &outds (compress=no keep=file_or_folder filepath filename ext msg);
     fmsg=sysmsg();
     if midf > 0 then file_or_folder='file';
     rc=fclose(midf);
-    
-    if index(fmsg,'File is in use') or index(dmsg,'is not a directory') 
+
+    if index(fmsg,'File is in use') or index(dmsg,'is not a directory')
       then file_or_folder='file';
     else if index(fmsg, 'Insufficient authorization') then file_or_folder='file';
     else if file_or_folder='' then file_or_folder='locked';
-      
+
     if file_or_folder='file' then do;
       ext = prxchange('s/.*\.{1,1}(.*)/$1/', 1, filename);
       if filename = ext then ext = ' ';
@@ -2074,7 +2088,7 @@ run;
       else do i=1 to foptnum(fid);
         infoname=foptname(fid,i);
         infoval=finfo(fid,infoname);
-        sasname=compress(infoname, '_', 'adik');	
+        sasname=compress(infoname, '_', 'adik');
         if anydigit(sasname)=1 then sasname=substr(sasname,anyalpha(sasname));
         if upcase(sasname) ne 'FILENAME' then output;
       end;
@@ -2091,7 +2105,7 @@ run;
       else do i=1 to doptnum(fid);
         infoname=doptname(fid,i);
         infoval=dinfo(fid,infoname);
-        sasname=compress(infoname, '_', 'adik');	
+        sasname=compress(infoname, '_', 'adik');
         if anydigit(sasname)=1 then sasname=substr(sasname,anyalpha(sasname));
         if upcase(sasname) ne 'FILENAME' then output;
       end;
@@ -2527,7 +2541,6 @@ create table &outds as
    datetime2 format or regular decimal type
   @version 9.3
   @author Allan Bowe
-  @source https://github.com/sasjs/core
 **/
 
 %macro mp_getddl(libref,ds,fref=getddl,flavour=SAS,showlog=NO,schema=
diff --git a/base/mp_dirlist.sas b/base/mp_dirlist.sas
index 79b23fa..320922b 100644
--- a/base/mp_dirlist.sas
+++ b/base/mp_dirlist.sas
@@ -1,17 +1,17 @@
 /**
   @file
   @brief Returns all files and subdirectories within a specified parent
-  @details When used with getattrs=NO, is not OS specific (uses dopen / dread). 
+  @details When used with getattrs=NO, is not OS specific (uses dopen / dread).
 
   If getattrs=YES then the doptname / foptname functions are used to scan all
-  properties - any characters that are not valid in a SAS name (v7) are simply 
+  properties - any characters that are not valid in a SAS name (v7) are simply
   stripped, and the table is transposed so theat each property is a column
-  and there is one file per row.  An attempt is made to get all properties 
+  and there is one file per row.  An attempt is made to get all properties
   whether a file or folder, but some files/folders cannot be accessed, and so
   not all properties can / will be populated.
 
   Credit for the rename approach:
-  https://communities.sas.com/t5/SAS-Programming/SAS-Function-to-convert-string-to-Legal-SAS-Name/m-p/27375/highlight/true#M5003 
+  https://communities.sas.com/t5/SAS-Programming/SAS-Function-to-convert-string-to-Legal-SAS-Name/m-p/27375/highlight/true#M5003
 
 
   usage:
@@ -20,21 +20,25 @@
 
       %mp_dirlist(outds=cwdfileprops, getattrs=YES)
 
-  @warning In a Unix environment, the existence of a named pipe will cause this 
+      %mp_dirlist(fref=MYFREF)
+
+  @warning In a Unix environment, the existence of a named pipe will cause this
   macro to hang.  Therefore this tool should be used with caution in a SAS 9 web
   application, as it can use up all available multibridge sessions if requests
   are resubmitted.
-  If anyone finds a way to positively identify a named pipe using SAS (without 
+  If anyone finds a way to positively identify a named pipe using SAS (without
   X CMD) do please raise an issue!
 
 
   @param path= for which to return contents
+  @param fref= Provide a DISK engine fileref as an alternative to PATH
   @param outds= the output dataset to create
-  @param getattrs= YES/NO (default=NO).  Uses doptname and foptname to return 
-  all attributes for each file / folder.  
+  @param getattrs= YES/NO (default=NO).  Uses doptname and foptname to return
+  all attributes for each file / folder.
 
 
   @returns outds contains the following variables:
+   - directory (containing folder)
    - file_or_folder (file / folder)
    - filepath (path/to/file.name)
    - filename (just the file name)
@@ -47,18 +51,26 @@
 **/
 
 %macro mp_dirlist(path=%sysfunc(pathname(work))
+    , fref=0
     , outds=work.mp_dirlist
     , getattrs=NO
 )/*/STORE SOURCE*/;
 %let getattrs=%upcase(&getattrs)XX;
 
-data &outds (compress=no keep=file_or_folder filepath filename ext msg);
-  length filepath $500 fref fref2 $8 file_or_folder $6 filename $80 ext $20 msg $200;
-  rc = filename(fref, "&path");
+data &outds (compress=no keep=file_or_folder filepath filename ext msg directory);
+  length directory filepath $500 fref fref2 $8 file_or_folder $6 filename $80 ext $20 msg $200;
+  %if &fref=0 %then %do;
+    rc = filename(fref, "&path");
+  %end;
+  %else %do;
+    fref="&fref";
+    rc=0;
+  %end;
   if rc = 0 then do;
      did = dopen(fref);
+     directory=dinfo(did,'Directory');
      if did=0 then do;
-        putlog "NOTE: This directory is empty - &path";
+        putlog "NOTE: This directory is empty - " directory;
         msg=sysmsg();
         put _all_;
         stop;
@@ -73,7 +85,7 @@ data &outds (compress=no keep=file_or_folder filepath filename ext msg);
   dnum = dnum(did);
   do i = 1 to dnum;
     filename = dread(did, i);
-    rc = filename(fref2, "&path/"!!filename);
+    rc = filename(fref2, cats(directory,'/',filename));
     midd=dopen(fref2);
     dmsg=sysmsg();
     if did > 0 then file_or_folder='folder';
@@ -82,12 +94,12 @@ data &outds (compress=no keep=file_or_folder filepath filename ext msg);
     fmsg=sysmsg();
     if midf > 0 then file_or_folder='file';
     rc=fclose(midf);
-    
-    if index(fmsg,'File is in use') or index(dmsg,'is not a directory') 
+
+    if index(fmsg,'File is in use') or index(dmsg,'is not a directory')
       then file_or_folder='file';
     else if index(fmsg, 'Insufficient authorization') then file_or_folder='file';
     else if file_or_folder='' then file_or_folder='locked';
-      
+
     if file_or_folder='file' then do;
       ext = prxchange('s/.*\.{1,1}(.*)/$1/', 1, filename);
       if filename = ext then ext = ' ';
@@ -120,7 +132,7 @@ run;
       else do i=1 to foptnum(fid);
         infoname=foptname(fid,i);
         infoval=finfo(fid,infoname);
-        sasname=compress(infoname, '_', 'adik');	
+        sasname=compress(infoname, '_', 'adik');
         if anydigit(sasname)=1 then sasname=substr(sasname,anyalpha(sasname));
         if upcase(sasname) ne 'FILENAME' then output;
       end;
@@ -137,7 +149,7 @@ run;
       else do i=1 to doptnum(fid);
         infoname=doptname(fid,i);
         infoval=dinfo(fid,infoname);
-        sasname=compress(infoname, '_', 'adik');	
+        sasname=compress(infoname, '_', 'adik');
         if anydigit(sasname)=1 then sasname=substr(sasname,anyalpha(sasname));
         if upcase(sasname) ne 'FILENAME' then output;
       end;