My apologies for the delay Stephen.
I thought I had sent you a long reply, quite some time ago.. The message must not have went through..
So let me retype my reply ( and save it this time ) and then send it to you again.
What your going to want to do, is check the current pixel size of each of the 2 or 5 images you want to combine.
Then, create a new image.. and make it the size of all four images put together.. Such as..
if your images are 250 250 pixels.. Then you want the new image to be 1000 x 1000
Then, you just need to drag and drop the four images, onto the new image.. Arrange them.
Then optimize and save it as a jpeg.
The video below, discusses in depth how to do so with 2 pictures.. You can do the same thing with 4 pictures though
If you get stuck or run into any issues Stephen, please let me know.
If my answer helped, please click one of the smiley faces to rate the solution, and then click the green accept button to accept the answer..
If my answer did not work, please wait to rate the answer and also wait to accept and instead send me a reply so that I can continue to assist you as needed.