In forecasting folks will often use external data. For example let's say you have six different estimates on the growth potential of a market from six external

In forecasting folks will often use external data. For example let's say you have six different estimates on the growth potential of a market from six external reports. It'd be cool to be able to specify that a range of assumptions have citations. At the moment folks do this using accompanying appendices to financial models, which is pretty gross.