cannot create free wd button

I installed wd button plugin, and clicked add New button, then filled in title, which was Contact Me, and the slug was contact-me, copied and pasted the shortcode into the required area of home page. Problem: It only shows the demo of button which says YOUR TEXT, and if you select Button Settings, you only get an uneditable Live Preview, so there is nowhere to edit the actual button. So where are the instructions to edit the actual button?

Actually doesnt matter because I tried another plugin OTWthemes.com and it worked immediately. Therefore I give up, your plugin failed for me, and I have deleted it.