As a general rule, it's a good idea to ask new questions in a new thread.
The wire numbers are actually blocks/symbols, so you can edit those symbols with the text height you want, and run the Block Swap/Update tool to update the wire numbers that are already inserted.
The blocks you are looking for are named WD_WN*.dwg and are located in your symbol libraries.
Right click on the project i project manager, and select properties. Then, expand the Schematic Libraries in the tree view to see where you symbols are located.
Using the properties palette, you can change the height of the text to whatever you like.
Trond Hasse LieEPLAN Expert and ex-AutoCAD Electrical user.
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