I would like to move the hand, the lasso and the global Connect tools into
a separate container,and keep only the start and end events and tasks in their default containers (djs-palette-entries)
Could you please give some pointers in order to implement that?
Not easy to do. You can replace the palette all together though with your own.
Is it possible to integrate two palettes into the diagram?
if yes could you give me some code hints?
Palette service to learn how the default palette is implemented. Nothing keeps you from implementing many of these.