Thanks for posting my suggestions on here.
With regards to the Avg. Best % gain and loss, STT provides that for a dedicated share. But it would be great to have that info available across all your trades as an Avg % gain or loss of every trade you have taken. Then to be able to splice that data to monthly or weekly would be great. You can then see when your average % gain is increasing or when you average % loss is increasing and you may the decide to start cutting losers a bit earlier for example, to bring you average loss down a bit. It is a handy metric to have.
Avg. R-multiple gain/loss would also be great.
Being able to splice your data and track monthly performance metrics like profit factor, Avg. R ratio gain/loss, Expectancy, Avg % gain/loss, win/loss ratio, Avg. days held for winners and losers (also a handy metric to assist in determining when to cut losers or give winners a bit more room).