The only option would be to make an exact copy of that unit in the object editor with a different name on it. And then trigger it to make it look like he changes name, by replacing the old unit and then select the new one for the player. If it is a hero you need to transfer the items thought.
The easiest way, I think, is using the Berserker Upgrade. I have never done this before, though, so I can guarantee that it works.
Make one costum unit with the first name, and another unit with the same stats, but with the other name. Then base an upgrade on "Berserker Upgrade", and change "Data - Effect 1 - Unit Type Affected" to the first unit, and "Data - Effect 2 - Unit Type Affected" to the other unit.
And when you want to unit to change name, just give the upgrade to the player owning the unit.
I'm not into upgrades, but if you unlike abilities can have two upgrades based on the same base upgrade, you can make an inverted upgrade to change back. I hope you're not planning to change too many times, since you will need one upgrade for every time you change...
Signatures can be edit in your account profile. As for the old stuffs, I'm thinking it's because Blizzard is now under Microsoft, and because of Microsoft Xbox going the way it is, it's dreadful.
@tom_mai78101 I must be blind. If I go on my profile I don't see any area to edit the signature; If I go to account details (settings) I don't see any signature area either.
You can get there if you click the bell icon (alerts) and choose preferences from the bottom, signature will be in the menu on the left there https://www.thehelper.net/account/preferences
I bought an Ender 3 during the pandemic and tinkered with it all the time. Just bought a Sovol, not as easy. I'm trying to make it use a different nozzle because I have a fuck ton of Volcanos, and they use what is basically a modified volcano that is just a smidge longer, and almost every part on this thing needs to be redone to make it work
So, 2.5mm longer. But the thing that measures the bed is about 1.5mm above the nozzle, so if I swap it with a volcano then I'm 1mm behind it. So cool, new bracket to swap that, but THEN the fan shroud to direct air at the part is ALSO going to be .5mm to low, and so I need to redo that, but by doing that it is a little bit off where it should be blowing and it's throwing it at the heating block instead of the part, and fuck man
I didn't realize they designed this entire thing to NOT be modded. I would have just got a fucking Bambu if I knew that, the whole point was I could fuck with this. And no one else makes shit for Sovol so I have to go through them, and they have... interesting pricing models. So I have a new extruder altogether that I'm taking apart and going to just design a whole new one to use my nozzles. Dumb design.
Can't just buy a new heatblock, you need to get a whole hotend - so block, heater cartridge, thermistor, heatbreak, and nozzle. And they put this fucking paste in there so I can't take the thermistor or cartridge out with any ease, that's 30 dollars. Or you can get the whole extrudor with the direct driver AND that heatblock for like 50, but you still can't get any of it to come apart