[Jobs & Experts] custom template for [jbp-job-update-page] page

I want to make a custom page where I use this shorctcode [jbp-job-update-page]. I need to add there some text and make re-order.

After I updated the plugin, my changes will are lost.

During the chat we provide some mu-plugin but this does not work.

Can you help me with this one?

Thank you.