I made a custom popup for a specific layer. But my method is really not good for Web Appbuilder/WebMap environment.
Section from the customPopup widget:
This way, i have to remove the layer from the webmap to avoid duplication.
I would rather modify programmatically the original layer's infoWindow. But i cannot find any documentation for this.
How can i reference existing objects? Every tutorial or sample creates new ones...
I tought something like this will work:
Solved! Go to Solution.
Thank you so much! It was not working because the infotemplate is infoTemplate  But finally we (you two) solved the case here
 But finally we (you two) solved the case here 
Just for the record:
Do you have any tricks here to leave the related records section untouched when i'm resetting the infotemplate object?
I could use the PopupManager.js's methods to call the RelatedRecordsPopupProjector.js after the new infotemplate creation. Just it's needed to add the esriViewPopup class to the popup div.
