The option "Use custom workspace" is very useful (especially if several projects need to access the same compiled code etc.).
However, it is not available in all job types.

I propose to make this a default-option for all job types available.

Some solutions for similar issues addressing individual job types (e.g. Ivy, Ivy/Maven, Matrix) already exist, however for other job types they do not. And the location of this option on the job-configuration page is different.

I tested the availability of the "Use custom workspace" option for the following job types:

• Freestyle
  • Available at: "Advanced Project Options"-->"Advanced"
• MultiJob
  • NOT available!
• Maven2/3
  • Available at: "Build"-->"Advanced"
• Ivy
  • Available at: "Ivy Module Configuration"-->"Advanced"
• Matrix
  • Available at: "Advanced Project Options"-->"Advanced"
• Montor External
  • NOT available! (But maybe this makes sense!?)