I've had this issue happening since NX9 & I don't recall which version, but I seem to recall it being reported as fixed between now & then. What happens is that I customize the View Popup menu in Drafting to be as shown in Fig. 1
Then after working a few hours/days the ordering changes on a whim (see Figure 2) and it's ALWAYS the Expand command that's jumping up to the top. I just noticed today that Repeat command is also jumping to the top as well. It only does this when commands are added to the View Popup menu.
I've got no clue what's causing this and would like it fixed - it's a real annoyance.
NX 188.8.131.52 MP11 Rev. A
GM TcE v184.108.40.206
GM GPDL v11-A.3.6
I've found PR 7261591 which states the issue was fixed in NX 10.0.3 and NX 11.0. If you're still experiencing the problem in those versions then I'd suggest opening a new IR with GTAC to investigate.