IHM 14A1 and UART

[MLecl]

Hello everyone , I have a problem about the IHM14A1 , I know how to use it with the SPN14 librairie but I want to add a UART communication on my nucleo f303re. Unfortunately I don't know how to create my cubemx project ( which pin are use and which timer how to configurate them ) to use the stepper motor card and libraires.

So I try many configuration, I found this pin config but how to add all the motor control librairie in my project without problem ?

And sorry for my bad English, i'm still learning

PS : I'm using true studio IDE