Hi @heidipj
Looks like I did miss an update, see https://monday.com/developers/v2#column-values-section-itemlink. So, you can set the items to link to in a link to item column, but I don’t believe you can specify which board to link to in the API (that should be setup in the UI).
See also discussion over here: [Released] Link to Item Column Update - #30 by derrickleemy
Generally feature request for the API can be found here Feature Requests - API and Apps Framework - monday Community Forum