There is a way to merge shp polygon with different fields? or there is a tool to copy the fields and format from one shp to another (not the content)?
Under QGIS 3.4.x:
Vector -> Data management tools -> Merge vector layers.
Uses all attributes and all features.
I found a way to do it with Refactor Fields, then I can Merge the layers. With that tool I can rebuild the atributes table with other shape file format.
Thanks to everyone.