With a huge stroke of luck, I have had a near 100% successful quick transfer!
One issue though: one of the interiors was a church. In the GECK, all I can see are NPCs (I think I've checked all visual filters, unless I missed a few)
The walls appear in-game, but I can't do anything in the GECK because of this. The objects are there but I can't see them.
Thanks in advance!
If you do not see the walls in-game, it has to do with RoomBounds. In the NV-GECK, the RoomBounds actually mask the objects (just as they do in-game), I recommend the following:
1. Click on "View", then "Show/Hide Window". Then make sure Room Bounds/Portals is checked. You should see light-blue boxes in the render window (these are the room bounds).
2. Multi-select the RoomMarkers in the Object View (lower-right corner). I usually click on the EditorID column on the far right to sort the references in the cell, then hold shift and select the first and last room bound.
3. With the RoomMarkers selected, Single left-click the title bar of the Render window to make that active. You should see all of the room bounds now selected.
4. Move your mouse over one of the room bounds, Left-Click (and hold it down), Hold down the "Z" key with your other hand, and drag the Room Bounds UP. They should all move directly upwards if your holding Z. This gets them above your content and out of the way.
5. Re-do step 1, but this time Un-Check the RoomBounds so that they vanish from the Render window.
6. Press F5 to re-render the cell. You should be able to see everything now.
When your ready to release the cell/mod, re-do this process but drag the RoomMarkers DOWN this time so that they cover the cell content.
Luck,
Miax