The SE grills are actualy easier to remove and set back on because of the metal frame.
I had so much problem with the "old" 8000 and 7200, but now works like a charm.
You can feel on the grill on each side that it has a "groove" in just with ease and be careful pull it towards you. The opposite side just has to be wiggle out!
And it's just to press it gently back in when you are finished.

Pers

40th.Anv.DSP8000SE &861v8/ID41,Meridian Ultra Dac,C15 Black w/SSD,QNAP TS-669Pro 6X3 Tb w/Core,HD621,Oppo UDP-203 ,JVC DLA-X700R, 2xJL Audio F112v2, Marantz 8802A for Atmos with KEF Reference 5 and 4C withR700 sides & rears and 4xKEF R50 Atmos