Gem Tables provides the ability to show/hide note containers....
Use Gem Table to add a colored border to OneNote's picture....
In OneNote, use the Gem Table plug-in to create a table with 1 slash header....
In OneNote, merges cells in the vertical direction in the Gem Table...
Select a Merged cell of Gem Table in OneNote, using “Unmerge Cell” to revert to multiple cells....
In OneNote, change the border color of the Gem Table. Realize colorful table borders....
In OneNote, use the merged cells provided by the Gem Table to create the table...