A few questions about new Orion Map Engine on Orion RC

Hi, guys. Just updated to RC and have some questions.

1. Setting coordinates is not working properly - I can't set negative coords. How to manage my nodes on the map more precisely?

2. How to switch snap to grid function? If I can't change coords this is the only way I see...

3. Any way to share one style to all of entities on the map? For example, I have 50 node groups here, and I need to make all of them "20x20 px" with text on "middle left"?