Option to "Temporarily Lower Shields" on site

Sometimes I’m not sure if Shields Up is breaking a feature on the site or what. Rather than lowering shields permanently to experiment and then to subsequently raise the shields again a) if shields are not the problem or b) if I no longer want to associate with site site, I’d rather a feature to temporarily lower shields so that I can leave the site and forget that i need to raise shields again because I know my selection will revert to a protected status in a little while.