Finally the node I had to override was the following one: Thank you all for your help.

Really helpfull, thanks @markus_bulla_adobe 

I´m requested to extend a component that I see in grey color in the crx/de .  it is possible to extend that kind of nodes? thank you all!

We would like to extend Page Editor.  We need to extend this specific section of the editor:   We are requested to read other property intead of the jcr:title to print the components.

Hi @Pulkit_Jain_ , can you please check the link that you provided, I think it is not correct right now. Also @navrattanocp , how was it? did you resolve the problem? I´m facing a similar request and I´m a little bit lost. Thank you all!