That would increase the height of the case even by a little bit
I it would be best to just make the top panel completely vented and have some panel to cover the vents if you didn't want to utilize it for (slim)fans.
I'd assume this case isn't made by Sliger. The handle looks very similar to a Lian Li one. The handle on the Chimera X looks way more functional and has a fan mount which is obviously a plus