I am using SolidWORKS 2017 Professional 2017 SP 1.0 but these steps should be the same or similar for all recent versions.
Right click one of your tabs on your ribbon when you are in a part. click the check box next to mold tools to add this tab.
You can turn on the mold tools toolbar by clicking going to 'View' - 'Toolbars' and selecting Mold tools.
All of the features can also be found in the "Insert' menu unter 'Molds' as well as using the search Commands in the upper right.
Thank you friend , i made my first tool
Also you can check out this tutorial,
Thank you friend.