I wanted to add a new folder to the right of existing folders.
The oFolder.GroupWith() command only seems to add folders to the left of existing (groups of) folders.
I've found the solution: Set the .Left tot a high value.
I presume that SBO takes the lefts of all folders and uses those values to order the tabs.
The left of the first folder (the folder you group the rest with) is probably used to specifiy the location of the group of folders, the rest is used to specify the order.
I don't know what the reference point is. It might be 0, it might be the .Left of the first folder.
Additional comments are welcome