By the way, I went through my instruction book prior to asking. It only gave info for using the 13 pre-installed fonts.

Do you happen to have any sort of Design Program for your PC - that works with your designs?

If you do - you can bring your fonts - one at a time into the editing feature and combine them into one design and save that and then download it on your USB and your machine.

Every letter file is a single design file, and for the machine it is no difference if you choose a clown, butterfly or an "E".
I'm afraid it will be the hooping hell to get those single desings lined up... even "Eva" was difficult ;-)
So I decided for a powerful software program named Embird, which allows you to merge and line up embroidery files on the computer before sending it to the machine, you create a single new file with your combined letters (or other) embroidery files.
You will love it. It is affordable, they offer a free trial and you can add some more modules, one I like best (beside the very useful Iconizer) is "Font Engine", which creates embroidery files from computer fonts. (Not all are looking good when ready, you will have to experiment). There are other brands of software available which can do the same, but Embrid really is comfortable and has good material for self-study (and does much more than just merging files).
Maybe you want to have a look:

You need at least a customising program to line them up nicely, otherwise it's marking and hooping well, just like any other design. Embird Basic or 5D Embroidery (or 5D Embroidery Extra - which does some autodigitising as well) are examples of custonising programmes. Try Enbirds free download, like Eva said, it works well - you won't be able to save the combinations you make in the free trial, but it gives you an idea of what the programme is capable of.

You might want to try Sew What Pro they have a free 30 day trial or so many saves can't remember how many at this time. It is a little less expensive that some others but you need to try several before buying. Goo Luck. If you do decide to get Sew What go ahead and get the Sew What Pro Version.

Embird has been my choice from the very beginning. Ea. set of fonts need to be in a seperate folder & you can do that with Embird./Lillian

Embird is the one I have used for the last 10 years and there are some very good tutorials out there on how to work with fonts and Embird. Well worth the money and updates are free. Do a search for Embird some of the sites offer better prices. *4U good luck

I have a Janome, but in the comment below Bethelb has your machine, and she says it's capable of doing what you need. Perhaps if you put up a message for font help with the Brother, you might get the help you need. Hugs, Marji