The terminals don't support CTRL+A for usage with the delete key. The native AE2 terminals do. It would be nice if CTRL+A worked for easy and speedy workflows.

i agree..i'll look into it

Not sure if this belongs or here or if it's a new issue:
Currently it seems like that the Wireless Crafting Terminal in JEI Synronized mode always moves the cursor in the textfield to the last position after half a second.
It also unselects the entire text (if selected using CTRL+A).
With Wireless Pattern/Interface Terminal this doesn't happen.

("WirelessCraftingTerminal-1.12.2-3.12.97" is the version I'm using)

I can also create a new issue if you want (and add proper information there).

It seems implementing the feature has broken part of it and another integration. I've experienced this too. In the end, CTRL+A still doesn't work properly (selects, but doesn't stay selected.)