This page describes how to cancel a Jenkins build from ci-tools.
The Jenkins server connection should be configured as described at here.
Jenkins tab at the bottom of the IDE, then Jenkins toolwindow will be appeared.
Reload button at the left-top of the toolwindow, then all jobs are appeared at the left pane.
3. Select a job, which is an item with a hammer icon at the left pane, then a list of its builds will appear at the center pane. The build with a yellow circle icon is the running build which is cancelable.
4. Select a cancelable build,
Stop button will be enabled.
Stop , then the Jenkins server will abort the build.
Please note that aborting a build will take a long time, thus some build remains with the yellow circle icon.