In the documentation there is an example of how to use select 'dbr.url' to make a dynamic URL here (under the heading 'Linking to external webpage with dbr.url'):
I have used this successfully to make dynamic URLs where the values after the ? change depending on values in my table.
But now I want to make the text string of the URL before the ? dynamic. I tried a few obvious things but it does not seem to work - is it possible?