...

• Left side table shows the list of files that are Modified, Created or Deleted in the Salesforce Org compared with SCM.
• Filter files by State (New, Modified, Deleted), Type, Full Name, or Last Modified By.
• Right side of the screen shows the content of the selected file.
• You can view the Remote file content from Salesforce Org by clicking on the View Remote File.
• You can view the contents of the file in the SCM by clicking on the View Source File for Modified files.
• You can view the difference by clicking on the View Diff for Modified files

...

You can select files and click on Commit button to commit the selected files into your Configured SCM repository configured on the project configurations tab.

Commit and Add

...

Files to Package

You can select files and click on Commit and Add to Package to commit and add the selected files to either existing package or you can even create a new Project Package in FlexDeploy. 

...