Hi,
it would be wonderful if connectivities in-one tool existing tools:

1. Curvature tool

2. Shaper Tool

3. Pencil Tool

4. Shape bulider tool

5. Bulider Shape tool

Example actions:

1. Draw a basic shape by hand, eg. A rectangle - function works Shaper Tool and create a regular rectangle with 4 nodes.

2. Tap cursor anywhere on the one side line, and I add a new node, drag it to modificate line and create curves - function works Curvature tool

3. On one of the sides of shape between nods, draw zigzag. Draw zigzag starting from a point outside the line of the curve (somewhere on the side of the curve) - work function Shaper Tool and removing the entire section of shape between nods. Create shape open.

4. tap, and select one of the nodes and draw a new free line shape. In this way, it modifies the shape of freely drawing a native natural new section shape. - Work function Pencil Tool.

5. The selected shape is in editing mode so it has highlighted nodes, exactly as in the operation of the tools Curvature tool. Select one or more nodes, ie. An oval circle around them, and in doing so reduce the nodes, the nodes in the area of a circle is removed (reduction of nodes), the line is simplified.

WARNING.
press ALT - edit handle bezier (direct selections tool)

WARNING.
It is very important that the described editing works only for the selected shape. If I'm want edit different shape I need to firstly select it.

1. If I check several objects can combine shapes or like - tool works Bulider Shape tool.

Now really, really do the same tool in a mobile application Adobe Draw.

AND
it would be ideal if I could quickly edit lines using the tool Width tool...

Best Regards!