When Tooltips [1] is toggled on, tooltip text [2] will appear if you hold your mouse cursor steadily over the parameter. You also get parameter info displayed in the Editor control display [3] while hovering over parameters, like CC number assigned by default, parameter name and the current value.
Tooltips are courtesy of Roland Corporation and more details can be found from JP-8000 / JP-8080 User Manual.
JP-80×0 Editor User Manual – Tooltips
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