Formulas can make Buttons more powerful.
To add a formula, do the following:
Select an action
Select a field you would like to change
Switch input into the formula mode by clicking f icon at the right of the control
NOTE: You may reference clicked entity with [Step 1 Entity]. For example, Feature can be referenced as [Step 1 Feature]
USE CASE: Automation of sync fields for related entities
Sometimes there is a need to set the same value for fields of related types. Let's imagine you have a feature with user stories and there is a Product Area field defined for feature and user story. You would like to synchronize the value of the Product Area for all stories assigned to a feature. This is how it can be accomplished below.
USE CASE: Add related entity
You may use formulas to create a related entity and set some calculated values to some fields. Here we create a Bug for the Request and this Bug has the same Name as the Request.
USE CASE: Change existing number, date, or text
You may change existing primitive values as well. For example, create a Button that doubles the Task effort and adds a week to the Due Date (developers will love it).