how to change gear properties after creation

Hello all, I have created a gear part from the design library tool, and then i did some modification on it. I spent hours trying to figure out how to change or even check what was the pressure angle i selected and to change if needed but I could not find a way to do it

Does Anyone know how to change gear properties like preassure angle or diametrical pitch after creation in Solidworks 2019 ??

SolidworksGeneral