Mongo DB secondary node

Good day.

I have a question regarding mongo DB connecion account.
Is there a way to configure a secondary node? I mean, If I make the connection via connection string, the parameter name and value in that connection string are readPreference=secondary and I can configure the name of that node, but in account configuration in SnapLogic I cound’t find where to define that kind of parameters (if possible).
Maybe if I use a generic JDBC account I could define those parameters but I’d like to use the standard mongo DB account.

Thank you for your help.