After seeing this post Ingesting an expirable Image URL doesn't work? solved by @Scott_Collier-Weir (thank you, Scott) I realized that I could use webhooks to send pictures hosted in Coda to another Doc using the hidden formula
_Deref_Object(_Merge(thisRow.pictures), "publicUrl") that I learned from @Paul_Danyliuk (thank you, Paul).
Instead of sending the picture itself, I would send its URL.
It’s easy to use webhooks to send more than one URL of pictures using the formula below:
thisRow.[Pictures].FormulaMap( _Deref_Object(_Merge(CurrentValue), "publicUrl") ).ListCombine()
But I just can pass more than one image URL to a image column. This formula bellow doesn’t work:
thisRow.URLs.Split(",") .ForEach( thisRow.ModifyRows(thisRow.pictures, thisRow.pictures.ListCombine(CurrentValue)) )
Any help on this will be appreciated. Thank you