Darken99
If you like tinkering, instead of using plotstamp, use the RTEXT command and do the following.
Type RTEXT
<Diesel>
Then type the following in the Rtext edit box.
DRAWING FILE NAME and LOCATION - $(getvar, "dwgprefix")$(getvar, "dwgname") - $(edtime,0, MONTH DD"," YYYY-H:MMam/pm)...