@adrian.otelea ,
As a workaround, what I have done in the past is to use (vl-directory-files), which allows wildcards, to create a list which I then put in a DCL list_box for the user to choose. I also included the file date for each item in the list (placed by tabs) with a button above each column to sort by name or date. Oh yeah, there was another column for project name (being the parent folder).
Plus, with the options that vl-directory-files provides, you can keep digging down into the tree to search through all your projects and their subfolders.
I also included boxes in the DCL to provide filters for the oldest search year, municipality (town), and client name with wildcards. Hmm, maybe the towns were in a list_box as well with multiple_select = true. Of course you could also pick any file from the list and hit the "Open" button unless it was already in use.