How to setup callback on table field update?

RT Developers
1

RT3.0.4
I want to tie my own function(callback) on TicketCustomFieldValues
update, insert or something else.
I want to do it because of Transactions missing, for example: On Ticket
Create setting some Custom Field don’t create new Transaction :frowning: just
incapsulate it in Create transaction.
Best Regards. Ruslan.