Revision of the Buy/Selling Option

It would be a great improvement for the direct action feature of (buying or) selling market shares and derivatives straight out of the portfolio site, to really choose what amount to sell. Right now selling shares is limited to percentages of what you do hold at the moment. It would be better to influence the amount of withdrawals with some kind of buttons, that are already included for the option of buying shares like “+50 or +100 and max”.

Further it would be interesting if you would consider giving us all the possibility, to make a bet against a certain option more complex (e.g. Spotify monthly listeners: If I am certain that the real decision is made between Bruno Mars and Justin Bieber, that I can take a more secure bet by choosing the option of betting “No” to all others who are not included [in this case Drake,….]. Because it really is a safer option, the max profit would have to be regulated or capped.)

I think that these suggestions could be good improvement and help the chart move or behave like a real market that isn't predictable…