Instead of enter find mode, set field, perform find, just do perform find and use $item as your search value.
Set field should definitely work in this case. You have it commented, but you say it's "not available"?
A possible issue may be that insert calculated result requires the field to be on the current layout. Could that be your issue?
Sorry if I'm stabbing in the dark a bit. I definitely use these methods, though, so I'm not sure I understand what's happening in your case.
As to the specified folder, you say that it's "really difficult". In what sense?
Additions, have you checked the $List value or value list name in the function?
I also couldn't find any problem in script, "Set Field" should work better than "Insert...".
Thank you. I did 2 things that helped. One, I closed and reopened the FM13 Advanced. Now I find Set Field avaialble as an option in the script menu options. However, I still continued with Insert Calculated result. Second, in the ValueListItems (Get(FileName ) I added &".fp3"; before "Attending" & ".fp13" ; "Attending" ) It worked right away.
After closing reopening the FM13 Advanced, Set Fieldoption became available in the scripts Meneu. Hiwever, I still used the Insert Calculated result, with $item. It is working. Problem resolved.