You can create your own libraries of functions through the Tools menu. These functions will be available only throughout your company.
Step1
Navigate to Tools section
Step 2
Create a new tool or select the existing one (double click)
Step 3
Name your tool and enter the code for your function. It has to have the following format:
this.yourFunctionName = function(param1, param2, param3) { // Your code here }
Step 3
Click save and you are done! Now you can reference your newly created tool in any of your scripts in the following format:
tools.yourToolName.yourFunctionName (param1, param2, param3);