How can I make individual adjustments in an update-proof manner?

You can add individual customizations to your WP-ImmoMakler child skin in an update-proof manner.

The child skin was sent to you by email as a second download link with the main plugin or you can download the child skin plugin here: wp-immomakler-child-skin-plugin

Please remember to activate the child skin in your WordPress backend and switch from the main plugin to the child skin in the WP-ImmoMakler settings under General -> WP-ImmoMakler Skin.