Use the Copy Settings section!

You can choose specific sections to copy to existing monitors or an entirely new monitor. Just enabled the copy section by toggling

To enable this section switch your Monitor Settings to the Advanced view. Then Copy Settings will appear as a link in the menu on the left.

Select the sections you want to copy over to another monitor. Once you are satisfied you can then choose to copy over an existing monitor or create a new one from the current selections.

When creating a new monitor with the Copy Settings section it will use default settings for any sections that were not selected for the creation.