Obviously this is mainly utilized for tournaments (although it technically wouldn't hurt to have as a user option in cash) but the ability to swap between "number of chips" and "number of big blinds" would be nice.
Additionally, further customization for bet amounts. So if I wanted pre-flop to be limp, 2.2x, 2.6x, 3.5x, and max. Then just straight percentages on post-flop would be fine.
I know that doesn't matter too much, and maybe alot of people wouldn't utilize it, but especially for tournaments there are many sizings between 2 and 3 that people prefer over 2, 2.5, and 3. If I had to choose between "see stack in BB" and "fully customizable BB bet amounts" it would definitely be the "see stack in BB."
Thanks