Greetings,
I have finally learned to do this well enough to get by but, due to your post, I looked on the internet to see what easy steps can be taken to arch text as you desire.
I found a FREE download of some software called PicMonkey here:https://download.cnet.com/s/picmonkey/
and they say here are the only steps needed:
Open an image or a blank canvas in the PicMonkey editor.
Go to the Text tab (the Tt icon) on the left-hand side.
Click the Add text button, then type your text into the text box.
Click Effects on the Text palette. Click the check box next to Curved text.
Choose a shape from the drop-down list; Arc or Circle.
If you choose Arc, you can adjust the degree of arc with the Curvature slider.
To add some depth, click the check box next to Drop Shadow.
Even if that is all you ever used the program for, at least it sounds like an easy enough process for that portion of pattern design without having to learn an entire program.
God Bless! Spirithorse