Creating entities............

I am new to draftsight, having used a simpler verion of a CAD progam that will not run on the new hardware. I have created a dxf file of the old drawings, and can import them into draftsight . 

Problem:  I have designed a built some furniture, and would like to add a new item to the set, keeping the same style. I have imported on old  drawing and delted all except teh style features I want to keep.  These were scale drawings but the actual dimension have disappeared. All are simple 2 D .

The features I want are a series of lines and arcs, and I would like to change their sizes, but cannpt see how to combine them into a single item that can be "stretched."

Part of my problem is I don't know the words that can be searched in "help".

Any advice?

Thanks...

Gene 

SolidworksParts And Features