Updating Corporate Gallery master file
When you add shapes or slides from within the Gallery toolbar to a Corporate Gallery, changes are only made to your local version of the gallery. These changes will not be replicated back to the master to ensure team members do not unintentionally change shared galleries. Updating Corporate gallery master files is done via a different method but it is very straightforward.
Each gallery is saved as a standard PowerPoint presentation (for example corporategallery.pptx). To update the central file, you access and make changes to the source .pptx file.
To update a Corporate Gallery you simply open the .pptx gallery file from its location, make the required changes, and Save. If you update a local instance of the document, remember to upload your changed version back to the central location.
To add one or more slides to an existing gallery, open the file from C:\Users\Public\Documents\PPT Productivity\YOURGALLERYNAME\corporategallery.pptx
Make required changes to the file and Save. You will be prompted to enter the new Gallery information for each new slide.
To delete a gallery item, just delete the slide as you normally would.
To change the gallery item name of an existing slide, close the presentation and edit it from the side Gallery toolbar by right-clicking on the gallery item and pressing Rename.
When adding a new slide to a gallery, avoid using PowerPoints' "Duplicate Slide" option (as you won't be prompted for the new slide name). Instead select "insert new slide" and copy any existing shapes or add new shapes