Description of the room category on the invoice/offer

I would like to include a description of the apartment in the listings—but directly in the listing, not in the email. How can I do that?
1) Go to Settings/Texts:

Settings/Texts

2) Select the corresponding room category below the room category and enter the desired text in the field to the right of it, then click "Save."

3) Repeat steps 1 and 2 for all room categories that require a description.

4) Go to Settings/Invoice

Settings/Invoice

5) Select the "Text/Room Category" option and click "Save."

From now on, the text entered in the text will be included on invoices or offers.