If your merging two patches together this is what I do.
The simplest way to explain it is this:
You make two patches separately naming them what ever you like appinfo.patch & helpassist.patch. Making sure you fill in all patch info options (patch name,version,author,description, compatiable with versions).
Once both patches are made take one patch (doesn't mater which) say appinfo.patch open that up on your computer.
Starting from the start/beginning look toward the end of your description that you filled out explaining the patch description you filled in. Clicking your curser on last few letters before you reach the end ( should be a little before --- symbols).
Reaching your last letter or period if you included a period in your description sentence you will want to delete everything up to that point (beginning to very end of description). You will know when you are at the right spot if you are using your arrow keys to move one space at a time you will notice your at the end when the cursor doesn't move even with a right arrow click (once or twice). Now that you deleted the name,version,author,description from the beginning of the appinfo.patch you want to save it as a patch file, say patchNoHeader.patch. Opening patchNoHeader.patch simple click "ctrl" and letter "A" at the same time (if using windows) to copy the entire thing.
Now Paste that into the very end of your helpassist.patch. To know your at the very end of helpassist.patch simply click the down arrow key until cursor won't move down any more (paste there). Save that Patch as something different, say patchMergedAppInfoHelpAssist.patch.
I just wanted to word it in simplest terms for anyone else that may have also ran into this. I know it took me a number of times to fully understand it the first time and second time.