I have played with the Electric Quilt feature which allows us to use a pieced block as the a quilt layout a few times, and even designed a collection of pieced blocks to use specifically for this purpose.
The pieced blocks have to be made up of squares and rectangles. No triangles or any angles other than right angles. On the whole I found the blocks themselves to be pretty ordinary, but being able to use them as a quilt layout and they can be transformed.
Draw some basic blocks, and add to a new project file, go to the Quilt Worktable, and you will find a link under Quilt at the top of the screen.
As soon as EQ does it magic and turns the pieces into a quilt layout the pieced or applique blocks can be added as desired!
Something else in Electric Quilt to become addicted too!
The flowers which have been breeding in my EQ library are sort of based on a large South African bulb which takes ten years from planting to first flowering, but then flowers every year. Unlike the ones breeding in EQ the flowers appear before the foliage, like the Easter Lily, Amaryllis Belladonna, and the flower itself is similar the them and agapanthus As they grow in rather arid conditions, the large flowers on long stems look rather stunning, then the leaves appear as the flower dies off.
Something off topic … well, sort of.
The Electric Quilt blog has a story about a different use for EQ printable fabric.