1)

) Why adjusting or changing clips name in the viewer

) sorry must laugh. Because I want to change a M5 created template afterwards from A to B because that name sounds better or "KS" to "KS templates"

) just to get the whole overview and level structured in a better way. I guess this is a valid user reason.
Regarding "drag&drop" I guess you mean manually for each section where the template has been applied. Can't be a valid workflow.
2) As stated I want to avoid a right-click and looking for a shortcut to ease the workflow.