SW 16-17 Student Edition

Beginner.

Example. I have two rectangles and a circle of different sizes. I want to align the smaller rectangle inside the center bottom of the bigger one. Combine them so they become a single sketch so that when I move them around, they stay as one piece. And the circle in the center top. I've found the align toolbar, but it's always greyed out when I select the sketches and shapes.

If the feature is simply unavailable, is there a method I can use to sketch multiple shapes symmetrically?

This was my plan of action

X plane (front)

Large rectangle

Medium rectangle aligned to center bottom of larger

     fillet corners and cutout

Small rectangle aligned to center top. cut out

protrude etc. .

I can do it the brute force way and just draw each individual line, but it's too time consuming :/