Viewing the individual sketches

Under the items menu it says “sketch plan 01” and lists 18 sketches. I have altered them into one shape, but would like to alter one of the individual 18. How do you show each individual sketch?

Hello! Every sketch element on the same plane is considered to be a part of one sketch on the plane. If you wish to move one individual element from the sketch, please select that element, leave the sketch interface and move it with the Move/Rotate tool: