The Entity Token submodule for Drupal 7 provides support for chained tokens, so they can be used with entities referenced by fields. However, Backdrop's implementation of entity_token is very simple and doesn't include that, only chained url and original tokens are included.
This whole feature has been already requested in https://github.com/backdrop/backdrop-issues/issues/1440. However, that doesn't seem a straight-foward implementation. It's relying a lot on Drupal 7 Entity functions, such as entity wrappers and other utilities Backdrop doesn't have, or use the same way.
My approach here would be to start providing something simpler and more widely used, a taxonomy term reference field chained token.
For example, we can use the parents path in an alias pattern [node:_field_taxonomy_term_:parents:join-path]. We can provide this from the Field module.
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Hi, Thank you I know and use the Prepopulate module. But what I need is more information from a Node when I enter a reference (other fields should be loaded) Example, if...
Porting of module "Entity reference autofill"
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Hi Waldi, I'm not sure if it allows to implement your use case, but there is a Backdrop module which sounds as if it could be helpful: Prepopulate. If you give it a try, be sure to have a look...
Porting of module "Entity reference autofill"