TR_m3_OE_MG_InsideKey It's not really visible, if the player didn't move next to the crystal and notice it's an activator, detect key is the only way to find it. But it doesn't open anything so it's not a real key.
Guild guide Ohmonir at the Mages Guild in Vivec seems to be for Mage Guild members only - is that intentional?
He is part of the travel network going from Vaardenfell to the mainland. All of the other guides I have seen that go to the mainland do not require guild membership. I realized this when I used the guide in Old Ebonheart to travel to Vivec and then was unable to return via Ohmonir, because I was not a Mage Guild member. So, other than becoming a member, my only option to return to OE was to travel to Ebonheart and get a boat, which was a bit of a hassle.
The quest (id: TR_m3_FG_OE_ChampLost ) leads to Munamnabi cave where you're supposed to find a note... ( According to https://en.uesp.net/wiki/Tes3Mod:Tamriel_Rebuilt/A_Champion_Lost ) I did not find it, I even looked everywhere with TCL command... I also confirmed the quest worked ok after typing "player->additem TR_m3_OE_FG_bk_ConJou1 1" to console and reading the note.
the quest has you go to duke dren, but all the latter dialogue and journal entries say you had to go to the guy in the ebon tower
heres how i did it
i got the quest from the dunmer in the chapel i was nerevarine he told me to go to duke dren i did and came back to the chapel and then the quest was over and my journal looked like the image
T_Mw_Flora_TreeOak_03 Aanthirin Region (7,-25) 64581 -202750 2490 "tree caspering at the bottom" flora_comberry_01 Aanthirin Region (9,-30) 80853 -242985 315 "comberry bleeding maybe a bit to much here" flora_comberry_01 Velonith (10,-30) 82147 -242003 315 "comberry bleeding maybe a bit to much here" ex_velothi_loaddoor_01 Vhul (10,-24) 88156 -195468 339 "Door sunken in ground"
TR_Mainland.esm TR_m3_Neel Gymont00000000 Old Ebonheart, Neel Gymont's Fine Art -114 -830 130 "brought him 2x wooden bowl, 2x redware bowl and 1 silver bowl but he wouldnt take on the wayrest painter quest"
Although he did state to bring him 5 of almost any bowl I could find. Why can't he mix in silverware..