Initial thought is to add a 'created' timestamp and a 'last saved' timestamp to the backtest cards, and to also make them filterable by these metrics. It would be nice to see a "history of last-saved" or "history of updates" within each backtest card to view the former iterations of the backtest; a compartmentalized structure anchored to the original test... we're all working through a variety of variables & combinations when trying to optimize a strategy (or tuning a strat based on risk tolerance, etc) and sometimes need to reference previous testing variations...It's pretty much just like your 'view recent test runs', but only applies when you save over an already existing backtest, and it's accessed through the primary backtest card. Something like 'view recent saved test runs within this backtest'.