You must, of course have a subscription to the RDA Toolkit, in order for these links to work.
If the RDA Rule column is not showing:
If the RDA Rule column is showing:
click on the rule number for the element
the relevant RDA instruction will immediately show in a new window, and you will be able to navigate, as usual around the Toolkit
Notes
Another setting that affects how the links to the rules works is found at
Options under “Use built-in browser”:
If this box is checked, RIMMF will use its own browser to navigate the RDA Toolkit, otherwise it will use your default browser. The advantages of the RIMMF browser are that it is lightweight. The disadvantages are that it does not have any of the options that would be available in a mainstream browser