Altium Component Part Description
Yep, doesn't look like that option exists at the moment. I suggest posting to the feature request page: bugcrunch.live.altium.com/#Ideas/New . This feature would be extremely useful to me as I am currently working on a design with an FPGA and I have no idea what the difference between U1A/B/C/D/E/F/G/H is without opening each part. – DerStrom8 Feb 6 at 17:35