From the designs on the thumb drive, I download into my machine's memory pockets, when retrieving I can edit and then add the wording if needed, I also use the magnification on the machine to see exactly how the designs and wording will look.
If your machine can store designs, the answer is yes, but you'd still have to combine them as you would other separate designs. My Designer 1 and Brother 190D do not have that feature, my Melco EP-4 has an intern memory to save frequently used designs. But I prefer to combine designs on the computer as the larger screen makes placement more accurate.
I have both Husqvarna 3D Pro (which was very expensive) and Embird - which is cheap for what it does. As far as I know every embroidery software on the market let you customise your designs by combining, rotating, mirroring, resizing etc.
You already have your answer so I will just say welome to the Cute famuly.
Do you have software for your computer to work with designs? if so, download the designs to your computer and then only send to the stick what you want to plug into your computer.
You can ,if you download the whole alphabet. I know I can on a memory stick and into my computor then pick the letters and bring them into my program for my machine.