Adding a Script
You can add a script from the following ways.
From Menu Bar
- Go to Tools > Scripts > Add Scripts...

 - Enter a Title and click Browse... to locate a script you'd like to add

 - After selecting the script file, click OK
 
From Sidebar
- Go to 
Settings in the Sidebar - Right-Click on the Script folder and select Add New Script...

 - Follow step 2 above to proceed