Within a MultiJob project, we use the same job multiple times within a phase and in multiple phases. Each job gets its own set of parameters to do the work for a specific environment. We use 'Predefined parameters' to provide the parameters to the job.

This run fine, but each job shows the same results in the different columns.
Taken your example plugin configuration in account, if there are multiple 'echo1' jobs the columns shows the same output on every job with the samen name. For example the 'Last Success' column shows exact the same time.
Even when a jobs are disabled it shows the results of the last performed job.

Presenting/storing the results for each job should be possible on a extra configuration option.
For example like the 'Set Build Name' option. There it is a free tekst field which can take just text and/or environment vars like this #${ENV, var="MY_ENVIRONMENT_VAR"}

This would be an nice option to show visually the difference between the jobs and it could be used to gather the results specific for that job.
When a job is disabled it shouldn't show results, but should present itself as disabled.