You should be able to make complete words on your machine..one letter at a time and 'saving'. Your machine has a feature for selecting a tutorial for using the machine. Perhaps it is explained there.
I understand you to want complete words rather than creating with one letter at a time. I understand..I want my words saved and ready to embroider a''all at once'', rather than having to select individually and lock together. First, you need fonts on your computer. Many emb sites will offer free fonts--download to your computer, being sure they are in .pes format. Second, you need software to use the fonts and create words. A good starter might be a simple program that allows you to merge your fonts into words, merge designs, add design to words, and transfer completed creation from computer to machine.. It is for 4x4 & 5x7 hoops only. "Combine Design" is sold by
http://bowsandclothes.com/software and costs only $11. I am not affiliated, but it was one of my 1st softwares way back when it was introduced for $5. It is not a sophisticated software like those that cost hundreds or thousands, but will let you wet your toes to see if you want to go further. I just ck'd the site and it is still available. Oh, there are videos teaching you how to use it--be sure and watch. I'm afraid you will become addicted to your machine once you get familiar with it.
Other and better suggestions may come along. Good luck.