Thank-you. Responses are certainly helpful.
Find IN "c:\dir1" "c:\dir2" (etc)
seems to be what I need to prepopulate the find dialog. Good!
On the next issue: If button1 is the standard find command and button2 is the find command above then using button2 results in button1 having the same set of directories when launched ("c:\dir1" "c:\dir2") which must be deleted one-by-one.
I read resource.dopus.com/viewtopic.php ... hlight=osd about clearing the find dialog on launch but I believe they are using a 32bit program which might be why it is not working for me since I'm using Dopus x64 - is this true?
In any case, I have created a button with this command:
Find in {allfile}
Its a little quirky but might be acceptable for now. Thank-you.