Dynamic Issue Instructions is a Atlassian Forge app that provides the ability to add instructions that change dynamically when the issue changes status. The user can setup different instructions per issue type and status which makes it powerful to customize.
Installation
Install it through the Atlassian Marketplace
Project Admin Usage
Go to the project settings page (cog) and expand Apps section.
Click on Instructions menu item
Click on Create Issue Instruction button
Select Issue type and Status
In the description text box enter the instruction that you which to show on the issue for the selected status.
Click Save and the instruction is stored and will show up on the issue.
User Usage
Click on the Instructions button on the issue. (needs to be done 1st time)
View the Instructions panel.
Transition the issue and enjoy the guidance of the instructions.