I’d like to get more clarity in the portfolio statistics and a way to organise my positions manually.
I have a lot of shares in one position that I’m long on, but they aren’t in a pie because the feature didn’t exist at the time. I want to swing trade on that stock to capture more shares and short-term profits, but I don’t want to skew the statistics of my core position (average price, % gain etc) by either buying and selling within that existing position, or by selling all my shares and repurchasing in a pie as it would lose those statistics. (Hope that makes sense!)
Can we get the ability to divide our positions, or transfer existing positions into a pie without losing all the statistics? 
edit while I’m at it, how about being able to divide the ISA account into different tabs for long term and short term positions, both with separate statistics/graphs?