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, use variables to get access to issue data in the instruction.
Click Save and the instruction is stored and will show up on the issue.

Info
Use variables in instruction text to enrich the instruction

Variable	Description	Syntax example
{{key}}	issue key
{{id}}	issue id
{{description}}	description of the issue, specially stored and accessed by the syntax to the right	{{description.content[0].content[0.text}
{{assignee}}	assignee object, select what info from the assignee to display	{{assignee.displayName}} {{assignee.emailAddress}}
{{reporter}}	reporter object, select what info from the reporter to display	{{reporter.displayName}} {{reporter.emailAddress}}
{{creator}}	creator object, select what info from the creator to display	{{creator.displayName}} {{creator.emailAddress}}
{{priority}}	priority object, select what info from the priority to display	{{priority.name}}
{{fixVersions}}
{{customfield_xxxxx}}	access any customfield value
{{labels}}
{{versions}}
{{issuelinks}}
{{status}}	status object, select what info from the status to display	{{status.name}} {{status.statusCategory.name}}
{{components}}
{{issuetype}}	issuetype object, select what info from the issuetype to display	{{issuetype.name}}
{{project}}	project object, select what info from the project to display	{{project.name}}, {{project.key}}
{{created}}
{{updated}}
{{summary}}
{{duedate}}
{{environment}}
{{comment}}	comment object, select what info from the comment to display	{{comment.comments[0].author.displayName}} {{comment.comments[0].content[0].content[0.text}}

User Usage

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