There appears to be a problem with Yahoo Finance as a whole. Sometimes price or dividend values are calculated as Pence, other times they are calculated as Pounds, leading to you "loosing" or "gaining" 100x the value of an investment. If you could just be consistent on whether values are relative to Pence or Pounds this entire problem should go away...

However, if this fundamental issue cannot be resolved, please allow users of Portfolio 2.0 to edit Dividends. The information that is recorded is wildly inaccurate, leading to completely inaccurate Realised gains being recorded against a stock.

For example MNG.L sometimes has a Dividend of 0.135 per share, other times it is 6.00 when it should be 0.06. Because the Dividends recorded cannot be edited, to get an idea of Realised Gains I have to manually enter Dividends into a spreadshee and edit them to be accurate. This completely defeats the purpose and main advantage of Portfolio 2.0