Integrate files and changelists from the Version Control tool window
Install the Subversion plugin
This functionality relies on the Subversion plugin, which you need to install and enable.
Press Ctrl+Alt+S to open the IDE settings and select.
Open the Marketplace tab, find the Subversion plugin, and click Install (restart the IDE if prompted).
You can integrate changelists or files into your local working copy directly from the Version Control tool window Alt+9.
Do the following:
In the Changelists pane, select the required changelist. If neccessary, you can select several changelists at a time.
Do one of the following:
To integrate an entire changelist, click the Integrate to Branch button on the Merge Info pane toolbar.
To integrate a particular file from the selected changelist, select the file in the Changed Files pane and click the Integrate to Branch button on the Merge Info pane toolbar.
To revert the last integration of the selected changelist into the working copy, click the Undo Integrate to Branch button on the toolbar.