Can I edit the modifiers applied to an object? https://ibb.co/9stPR5L There is a subsurface modifier applied to the orange part and I'd like to hide it to work on the shape better. After applying a modifier in 2.8, it "goes away" and I can't see it anymore. When I apply a new subsurface modifier to the object, it doesn't overwrite it, it adds it to the first one.
If you apply a modifier to an object it becomes a part of the object and therefore vanishes from the modifier menu. The vertices of your object are changed permanently and you cannot reverse this step.
Because of that you will usually not apply modifiers, unless you really have to.