How to: Squarespace
Edit Gallery Block
To edit the Partner page, select Pages in your administrator Dashboard. Hover anywhere on the page, the content block (Gallery) will appear. Click edit.
To edit the Gallery Block, hover over the logos. "Edit" will appear. Select Edit and Gallery pop up with open.
To delete a logo, hover over specific logo and click the trash can icon. To add, simply drag and drop into the Gallery pop up.