If you are talking about the design being up on your machine, just be sure there's a line around it & click on the trash can or delete. (it won't take it off the stick if you've loaded it to the screen on the machine) Then proceed as you did with the first design & pull up the one you want. Hope this helps.
Gerry, i found out how to change from 1 design to another. Thank you for your help
"Husqvarna Viking Topaz 20 62 Load an Embroidery Design from USB Stick"
by HeirloomCreations
Your search words at you tube is in " " this takes you to a tutorial, hope it helps
Hope I understand your question correctly. You don't really want to delete the first design, do you? If you load the second design it will replace the first, I think. At least it would on Janome machines.
Thank u. I did so some playing around and found how to change designs. I bought my Embird and i am learning lots.