This option was available when I was on jenkins 1.65. Today I moved to jenkins 2.0 with a fresh install on a new machine. I don't see this option.
This option is necessary for our delivery pipeline view. So pipeline has 2 steps:
We were able to achive this in earlier version of jenkins but not in 2.0.
Please guide what could be missing or suggest any other viable alternative.
Solved. It has got nothing to do with Jenkins version.
We need to have Build Pipeline plugin installed as well. This plugin adds manual step support. And then Delivery pipeline shows Trigger manual build (▶) for the manual steps.