Hello Aris

Thank you for your purchase.

I'm sorry, but I don't quite understand what features you want to add?

for example add a field "fecha garantizada" checkbox whit custom icon

Where would this field be added? What would it be doing?

Changing the duration of services is not possible dynamically, and if I understood this is what you wish to achieve. Unfortunately, developing a feature like this would require significantly changing the code.

add the field, "Modalidad" for 5 modalities whit custom icons Vflex, Telepresencial, Online, Presencial, Ondemand

Again, where would this field be added? What would it be doing?

The duration of the service is considered a time slot in the booking session. Every service can have its own duration, and if you need more time steps, you should consider lowering the default time slot step in General Settings of Amelia. If you lower it to 5 minutes, your services can last 5 minutes, 10 minutes, 15 minutes, 20 minutes, and so on. If you lower it to 15 minutes, the services can last 15 minutes, 30 minutes, 45 minutes, and so on. You get the idea of time slot steps.

All services need to be assigned to categories. If you need to display the category view - you should use [ameliacatalog] and it will show the categories first. When you enter the categories, you will see the services inside.

Perhaps this can be done with some custom work, but I cannot say for sure without some further explanation about the desired features. Even if it would be possible, unfortunately our developers are very busy at the moment, working on some priority tasks and fixing bugs and issues with our plugins, so they won't be having the time for custom work in near future.

But we can recommend these services for customization:

https://codeable.io/?ref=l1TW1

https://wpkraken.io/?tms-plugins

They do develop such solutions, so can you please send your inquiry to them?