Hello uaigo

You have to customize the component in many areas (including database) for this. Sorry, we do not provide customization support. Please consult a Joomla developer for this.

Also, after each update, this will be overridden. So, you have to keep backup before SP Property update.

Best regards

I've already done the necessary customization of the component (database and files) leaving everything working fine, the .PHP files inside the template's HTML folder so as not to overwrite with each update. However, to include a field it was necessary to add a line of code in the property.xml and it is him (only him) that I need to know if I can override the administrative template. Tks

If it is not possible to do this override, would there be an option in the future, in a future update, to add new fields or customize the fields in the property registration form and agents in a simpler way?

Unfortunately, there is no option to keep the override safe.