Help with referencing arrows and labels

Hello, before anything I'd like to give a little background, I'm an electronic technician with very little experience drawing electrical schematics, I'm more used to drawing electronic schematics, but I was recently tasked with drawing the blueprints for some very simple electric panels and I figured it'd be faster to download a dedicated software than trying to use Altium designer for something it's not intended for, so if anything looks improper or plain wrong on the blueprint that's why.

I'm trying to create the first folio of the project, as you can see it's nothing complicated just a "power intake" diagram:

My problem is that I'd like to give the outgoing arrows specific names, and have the coming arrows repeat those names but i can't figure out how to do it.

The outgoing arrow named "L1-PROT" and the the coming arrow labeled 1-D4 are already linked.

The outgoing arrow named "L1-PROT" is named via custom text, because I can't figure out how to label it.

The coming arrow is labeled automatically.

How would i go about getting the behavior i want? I've tried googling and the wiki but I couldn't find what I'm looking for. I'll attach the file.