Traveler Theme Mods Wordpress

These ares a pretty simple additions, so it shouldn't be very difficult for a skilled developer. 1) I need to be able to add purchasable extras to tour bookings on my wordpress booking system. These additions are to be defined when creating a listing and editing a listing will need the following fields to define each added purchasable upgrade "Title, description, additional price/cost" 2) Fix and Copy Code. Copy some lines of code from the create listing page over to the edit listing page so there are the same options/features. Right now you cannot edit listings properly. Ex: When you update price it doesn't reflect. 3) Remove infant booking prices option from the whole system. 4) I had some code added to the create tour page. This runs very slow when submitting a tour. I need this code sped up.