Someone needs to go back to engineering school. Mounting the DRO on the side suggested does not work. When done you cannot open the panel without removing it. Probably designed by a first year graduate seeing a pair of existing mounting holes not used and not figuring out the results of mounting here.
And now it’s installed is there a video and/or manual on using the Redline spindle?
I found the page below with a quick online search…
https://www.redlinecnc.com/manuals
I designed a mounting bracket for use on the right side for the reason you mention.
You are welcome to use it if you wish…
Making it longer only sticks out where it’s going to snapped off. I made my own plate and used double-sided to stick on the right side near the top so the button is exposed. Since both parts are plastic I almost drilled holes and screwed it together. I think the tape will work fine and I don’t have to worry about knocking off when walking around the Elite panel.