Sure, you can close all the modified properties -- keyframed ones included -- by hitting the "uu" key sequence until they all close. Then for example, if you want position only hit the "p" key. If you want keyframed effects only, hit the "e" key. Every blessed effect property you've keyframed becomes visible.
Can you make just the Brush Size property in the Stroke effect visible with a keyboard shortcut? Nope. That's too obscure.