Custom field revealed when other custom field gets content

Hello OSTeam and Users:

We have a form for membership. 
Classes are taught twice a week but membership give the user an option to sign up for one day or two days and to determine if there are more than one persons signing up for the class.
Class 1
In the custom fields, we have a user input how many members they want to sign up for a single class during the week.

Extra class
We have another custom field that lets users add an extra day and the amount of users.
Adding an extra day is  at a lower cost per class.

Is it possible to hide the "extra day" field until someone adds a number of members in the first field? 

Thank you.

Channing

 

Sorry Channing. Currently, we do not have an option to allow show/hide field base on value of a custom field like that

Tuan

Thank you Tuan. Do you have a solution that might work around this? The problem is the second option is less in price and someone could choose that accidentally.

How form is set up now.
Adult at $45. Choose qty.
Add extra day $35. Choose qty.

Child $35. Choose qty.
Add extra day $30. Choose qty.

Channing

Hi Channing

Could you send me link to the form so that I can review your setup to understand it better to see if we could come up with a solution ?

Tuan

Thank you Tuan. I have submitted a ticket.

Thanks. I will check and reply you via support ticket

Regards,

Tuan