Problem: How to install an external printing form epf?
Solution:
If you had required an external printing form, find extension at hotline and do steps below.
1) You need to go to Administration module > Select Additional reports and data processors
2) Then you have two variants
a) Needful form had been already existed
Then you need to open it and load needful extension, very often it doesn't work the first time, so you can immediately load twice.
b )If extension is new, you need to create it
And save and close
3) Then you need to check, that needful information to printing form were added.