It would be handy to have a feature where we are able to withdraw either a chosen % (which takes an even amount from all or some of your shares) or say, the fractions from a group of investments in a pie.
A feature like that would be useful for those who want to take profits out once a year.
For example, I invest via 5 pies. Once a year it would be great to hit a button and withdraw the fractional amounts across all the pies, leaving me with whole shares where applicable. If a share is less than 1 whole share, then the feature excludes it from the withdrawal. OR I choose to withdraw 2% of the portfolios profits, tick which shares to exclude (if any) and then the software takes an equal amount from the remaining shares to make up that 2%.
Something like that perhaps? or a more refined version of this idea.