Hello,
I've installed the 3.3.0 and tried the support blockers... they are useable, but could be much better. It's tricky to place, move and scale those cubes. Also the software gets slow and lags at the first operation with the cubes. Placing is OK, but the 1st time I want to modify them I have to wait a lot. All next operations are OK again.
I'd much more prefer to remove the support structures just by click on them. Why have the developers chosen this strange solution?
I also would like to have a modified lay flat option. It would be nice just to select the face I want to be on the bed of the printer and Cura would place the model.