With the editor you can create plan properties, but you need to save them in the right place to load them.
You have to look in the options, then in file locations, custom properties files, and fill in the right location.
Otherwise there are layers that can be used too.
However, these solutions are file properties so the annotations will be present on all the sheets in your MEP. To put independent annotations per sheet, we would have to use the method of ac cobra 427.
When a property is created by the editor, it saves the file in .prtprp
However, this file type is not known to Solidworks Electrical 2D.
So I can't use the property editor.
For the backgrounds (cartridge), this is where I put my attributes that allow me to make my stamp. However, these are attributes that I have to fill in manually when I'm in drawing mode. I would have preferred these attributes to work automatically with the revision.
I just clicked on it again and it works without telling me that it's a hacked link. (Who knows why...)
I understand what you want to give me as a solution. Indeed, making several cartridges and changing them when I change satut in my revision is a solution, but it is heavier than the one I currently use.
What I do is faster. I've created a stamp in all the cartridges I use. In this stamp, there's text and attributes. Changing the value of the attributes in the project makes me follow the buffer. The only downside is that it has to be done manually (just like your solution).
In any case, you're on the right track. I hadn't thought about that.