[floppydisc]

Hmm I didn't implement loading map patches from the verdata, as the verdata is outdated anyway (not used by recent clients). What I would suggest you is to patch the verdata into the mul files. The easiest way to do this is by choosing Tools --> Verdata --> Create Patcher, choose your verdata and the target file and hit the "Create Patcher" button.
Once you have that patcher, you should make a backup of all your *.mul files (that is a big backup, I know). No you can delete your verdata and execute the patcher you just created. Select the UO directory (should be preselected) and apply the patch. That will put all entries from the verdata into the mul files where they belong to. This means, that you have everything from your verdata, without your verdata. You can now edit the map normally and your changes should be there. The positive side effect is, that you don't need the verdata anymore