When editing a section, the section itself will be saved, but another version of it may be displayed in your Content Library instead.
Here's how you can save another version of a section from your proposal to the Content Library:
Go to the proposal editor and find the section you want to save
To start, click the "Last Edited by" wording on the first page of the section you'd like to save:
The top most version is your default.
Below your default will be all the versions of that section edited in that proposal or template.
The Revision History holds a version for each proposal/template that section is used in. So if your section is being used in 1 template and 2 proposals, you will see 3 versions in your Revision History list.
Push & Pull
Edit in Library - will open that section in your content library where you can edit the default version. Remember: It may look different because when editing sections in the content library the styles are defined by which template you've set as your default template
You can click here to find out more about how this works.