Bulk Remove Images From Subgalleries

Good afternoon/evening,

We're starting the housekeeping process and wondering if there's an easy way to bulk remove images/photos from a gallery/subgallery/subgallery and keep the folder structure. We have our instance setup where the gallery is the location/1st subgallery is the studio/2nd subgallery is the routine. 

I may be overthinking this and am grateful for any assistance/guidance.

Kindest regards,

Les 

You would have to navigate into each sub  gallery, click the More tab in the photo menu tabs then  select Remove All Photos which will remove the photos from the sub gallery and keep the actual sub gallery. 

Thank you for the help Tim.