My R-1 one has an RD Box but I'm told to "Enter boxes RD, RM, RP and RR in the appropriate self-employment statement." Where is this statement?

[maxmeade]

RD is a subcategory of Box O.

[TurboTaxLise]

These amounts are transferred to the T2125 – Self Employment section of your return, which can be accessed through the Income tab, Self-Employment. 

• You will have to get an industry code which can be found here - https://bit.ly/2A9dwtd