Yeah, the editor UX is kind of... bugged.
Like, if you want to select a number, or a hex value, to copy and paste, you have to be extremely precise and select all the text.
Overshoot the cursor even just a tiny bit and it exits out the number bar. You can't even CTRL + A to select all of it, since that's the Append command.
You can't even double click to select all the text!
You can't even just paste the text in and expect it to override. Especially janky with wanting to add in HEX values you set outside of DDNet, as it just makes the whole thing white. (edited)