The attached script extracts frames from a trajectory.

The default is to extract the LAST frame. Another allowed keyword is ALL.

It is also allowed to have a comma and space separated list and intervals via 1-3 for example

Please do the following to add it to the User menu.

1. Import the FEX_v0.01.pl file into a Materials Studio project.
2. Open Tools->Scripting->Library to add the file to your script library.
3. Go to the User Menu tab.
4. Import User Menu_FEX_v0.01.xml
5. Under Script: point to the imported script.

The FEX_v0.01 command should now be in the User menu and not greyed out any more when the active document is a trajectory.