Requesting the ability to have macros that would apply hide / unhide to a preset group of columns. I encourage my clients to put all contacts on one sheet rather than one sheet for customers, another for vendors, a third for who knows what.
Each of these types of contacts has a few unique columns which are not used for the other type of contacts so I end up with a ton of columns - not fun to scroll through. A macro called <vendors> would only show the relevant columns for vendors, another macro shows only the relevant columns for customers.
Macros could be listed in a drop-down menue somewhere convenient on the sheet. It would bubble sort with the most used macro listing at the top or something similar. How cool would that be? Very.