The Check In Item action allows you to check out items to allow modifications to be made.
First of all switch to the Workspace page and select the workspace which you want to perform the check out on (this field can be populated with the default workspace if you have specified one on the options page).
Next, choose the items to check out from the selected workspace via the Check Out Items page. Add the files and directories via the controls provided.
Items that have been added to the list can be edited and removed with the corresponding controls.
There is one option available for this action:
Recursive - Perform a recursive checkout.