You can perform CAG Union operation from several shapes into single editable path object.
After that you can use Point Tools to alter the resulting path object.
You can perform CAG Subtract operation from several shapes into single path object.
After that you can use Point Tools to alter the resulting path object.
You can perform CAG Intersect operation from several shapes into single path object.
After that you can use Point Tools to alter the resulting path object.
You can perform CAG Exclusive Or operation from several shapes into single path object which combine area of its current shape and the shape of the specified area, minus their intersection.
After that you can use Point Tools to alter the resulting path object.