I took off from the ground at KOKC and vectored myself on downwind at 3000. I loaded the approach from FILUM. Northwest of FILUM (still at 3000, below profile but that should not have been a problem) I tried to go direct (direct key) to the second instance of FILUM to bypass the holding pattern as is common practice. The FMS sent me direct the first instance of FILUM to enter the hold. I tried again to be sure I hadn't inadvertently selected the wrong FILUM and the result was the same. I then manually sequenced the second FILUM to "blue" to bypass the hold while still in FMS1 nav. This worked as expected. So that's one issue - I should have been able to use the direct key to go to either FILUM.
Also, NAV to NAV transfer never happened. I had to manually switch to green inside IVEYI.