Have the tool automatically reinvest dividend payments for all stocks with a 'tick' (so not just an all or nothing feature, individual by stock). Use the DRIP rule for each stock (if 2% discount etc), Users can true up if the calculations are off by a bit. Also allow for FRACTIONAL SHARE DRIP or WHOLE SHARE DRIP, with leftovers going automatically to cash. I have to do this manually for each stock now, and it's pain. When I update the share amount, You prompt if you should" enter a buy lot for eg.3 shares" which is fine, but I dont know the price or the date of the dividend without looking each one up - - but you do!