Seems to me that Dope Sheet does not come close to having the functionality of the now defunct spreadsheet. Or, am I just not able to find those functions.

Have not been able to find a tutorial that really explains how and what the dope sheet does. Found one that shows you how to move keyframes but that is no biggy.

Is there a way to select multiple objects and move all their keyframes at once?? Is there a way in dope sheet to change individual values of channels.