-The only thing I miss from max is a poly cut tool.
You can use the Slide cut function.It’s a bit slower than a MaxCut but it does it as much if not more precisely.
Select one edge
Invoke the Right click menu
RIGHT Click on Cut instead of LMB
Drag the mouse to move the vertex on the edge
LMB to confirm
Next step after cutting them is to select them and hit C to connect.
-whatsa hotkey for the tweak mode
There is no default key.
You can define one easily by opening the Tools menu,hover on Tweak and hit ‘insert’ on your keyboard,the Next key you press will be assigned as a hotkey for this function it goes on for the rest.
-why is there no tweak mode in any other app???
Xsi has a point edit mode which is similar,Lightwave also has one I believe.