Locking Map Scale?

[Kywin]

Maybe I'm asking an old question in a new way...but is there any way to get the map to LOCK to a specific scale so that it won't zoom in or out without, say a keystroke? I know about the autoscale button, but using that doesn't prevent the map from max zooming out, everytime I reopen the map. (Maybe I'm missing something?)

[carboniteaddon]

Right click Carb minimap button, select Options, select Map page and uncheck "Center on selected zone when maximizing".