Hook on change custom field

RT Users
1

I have a custom field of type “Select one value”, and I’d like to hook
into any changes in that custom field so that I can run an external
script. What’s the best way of going about doing that?

Thanks

2

I have a custom field of type “Select one value”, and I’d like to hook
into any changes in that custom field so that I can run an external
script. What’s the best way of going about doing that?

Are you familiar with RT’s scrips system?