Hi Greg and DaveM121,
I tried repeatedly and unfortunately the method you guys showed me didn't work to save the columns for all folders. BUT, I think if you apply the folder's template to all folders, it works. So, set up the folder's columns as you like. Then open the properties window by either right-clicking on it or from the Home tab, then the Properties button toward the right. In the folder's Properties window click on the Customize tab, under the heading "Optimize this folder for:" select General items from the dropdown menu, then check the box for "Also apply this template to all subfolders". Then it saves the columns for all folders. This is for Windows 10 Pro.
And thanks for y'all's help.
Steve