add version selection to keyword/author

[TinfoilSubmarine]

This removes the requirement to manually edit the script in favor of defining the version(s) in "Tags"/"Authors":

I wasn't sure which would fit better, so I decided to do both since this ensures that even if the user is unsure, it will still work.

[Crissium]

Thank you! I believe it is a much better idea than letting the user edit the script manually.