The hidden settings section is a step in the right direction. However, the settings section will only allow for changes to the current selected wiki.
The “Manage wikies…” button I’ve in mind would lead you to a page where all your wikies are listed. You can then ‘highlight’ or select the wiki you want to “Remove”, “Trash”, “Rename” and/or configure.
To create this feature, you may need to keep the wiki distinctly different from the top folder (aka the Drive folder).
Why do I need this feature? By accident I selected an existing folder with lot of content as start folder for a wiki. It was absolutely too much work for YNAW app. I would then remove the doomed wiki from my list of wikies, without loading the wiki and without deleting the folder or any content within.
All the best,