[JENKINS-36624] Make combination filter multi-line if necessary

We have a large pool of machines running a variety of jobs, and the Combination Filter logic gets very long. It would be great if the Combination filter was multi-line, more like the Execute Shell box, so we could see all the combination logic.

Bracket highlighting (highlight the end bracket if you're on the start one) would be a bonus.

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Originally reported by gibfahn, imported from: Make combination filter multi-line if necessary

• assignee: kohsuke
  
• status: Open
  
• priority: Minor
  
• component(s): matrix-project-plugin
  
• label(s): plugin, user-experience
  
• resolution: Unresolved
  
• votes: 2
  
• watchers: 3
  
• imported: 2025-12-06
  

We have a large pool of machines running a variety of jobs, and the Combination Filter logic gets very long. It would be great if the Combination filter was multi-line, more like the Execute Shell box, so we could see all the combination logic.


Bracket highlighting (highlight the end bracket if you're on the start one) would be a bonus.

• environment: Jenkins 1.651, Matrix project plugin, complex combination filter logic

Start by locating the Combination Filter configuration control and comparing it with the Execute Shell box mentioned in the issue. Done means long combination logic is visible across multiple lines; bracket highlighting is an optional bonus.

Written by the indexing model from the issue text.