Jenkins Plugins Compatibility Issues

Jenkins setup:

We have provisioned a new jenkins server with version 2. 335 and we have an old jenkins server running with version 1.656.

We have migrated the jenkins jobs from 1.656 to 2.335 and we see that there is plugin compatibility.

The build with parameters options are not getting enabled on the migrated jenkins jobs. How do we fix them ?
Can someone suggest if there’s a work around to fix the incompatibilities ?

I’m just curious: why are you migrating to a non-LTS release of Jenkins that is more than a year old? That means you need to migrate soon again…