You can apply or release holds on cells. Holds are released when you navigate away from the current page.
If you apply a hold to a cell, you cannot change its background color. The color will revert to the original hold color.
You can change the color of Read-only cells (the default is gray), but you cannot use white, or the color used for a cell that has a hold applied (cyan).
To apply a hold, right-click the cell, and click Contributor, Hold.
To release a held cell, right-click the cell, and click Contributor, Release.