Your screenshot appears to display a page with the theme applied and two modules in two content panes that are about 50% in width.  If you need other content panes to be the same width, you'll have to consult with your theme developer/designer to do that.  Otherwise, why not just keep putting modules in the same two 50% content panes.  You're allowed to have more than one module in every pane that your theme displays to you.  

I know I have that option, but there is a better way. I looked into a skin template but that didn't solve it.

The orginal developer is no longer working for the company. 

All of the areas where you can "drop" or place a module are defined by the theme.  If you want more areas to add modules, the theme most likely will need to be modified to include those new content panes.  This is usually not a big change, by the way, depending on how well-built the existing theme is. 

Posted By Will Strohl on 1/16/2024 2:45 PM

All of the areas where you can "drop" or place a module are defined by the theme.  If you want more areas to add modules, the theme most likely will need to be modified to include those new content panes.  This is usually not a big change, by the way, depending on how well-built the existing theme is. 

I don't know to modify the "content pane" of one row 3 columns to one row two column. Can you teach this newbie?

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Hello again!  It's actually far easier than you might think.  Essentially, when you're looking at the source code for the theme, you will most likely want to create a copy of the layout that is currently working as you'd expect.  Let's call it InnerContent.ascx.  If this is the name, then the layout in the UI will simply be InnerContent, for example. 

This is probably in the /Portals/_default/Skins/NAME/ folder in your file system.  (NAME is the name of your theme package.)  

Open the layout copy you've just made and find the 50% panes you're already happy with.  They most likely look something like the example below.  

<div id="LeftPane50" class="someClasses" runat="server"></div>  
<div id="RightPane50" class="someClasses" runat="server"></div>  

These are probably wrapped by another DIV tag too, so try to be aware of what you may need.  

Once you copy and paste the new 50% panes you want into the intended position in the layout, be sure to change the IDs to be unique and then test the layout.  You may need to make some additional CSS adjustments.  Usually, those updates should go into the Skin.css file in the same folder.  

When you test, just create a new page on that site.  Then, apply the layout you're editing to that page and begin adding modules to it the way you're trying already.  

Using the example above, your resulting new content panes might look something like the new example below. 

<div id="Row2LeftPane50" class="someClasses newClasses" runat="server"></div>
<div id="Row2RightPane50" class="someClasses newClasses" runat="server"></div>

Maybe this is basic stuff but make sure you use some sort of html application that helps you edit this type of file (such as Visual Studio Code) so you get familiarize with the <div> hierachy you're going to find in the files Will mentioned in his post.