The characteristics of the Pen, the Eraser and the Spray are very similar, furthermore the Pen does not have the ability to merge the lines that cross and does not have the ability to copy a shape, the Spray is beautiful if you disperse the figures which is the only option in addition to the Pen in addition to copying selected objects, the Eraser cannot change shape if needed; Let's unite them in a single tool that can make strokes like the Pen, both intersecting and merging the stroke like the Spray does and that can copy the shapes like the Spray and also that with these shapes you can also erase parts of other figures objects like the Eraser (in Krita a brush can become an Eraser with a button and detects all the properties of the brush tip), this will make Inkscape much more powerful and will make it easier to make art with this fantastic tool.