Hello,
If you mean for a Package of Services - Yes, you can set a custom fixed price for the entire Package and you can include multiple services offered in it.
By default, the price for a Package is calculated from each 'default service price' included - but you can create your custom price for each Package.

In other words, you will have full control over the 'Package of Services' price - it can be fixed as you requested.

Please check more details explained about our Packages here.

We also have the deposit feature - you can check it out here.

Additionally, I just wanted to point out that we have pages with Demos, that you can use to try out the plugin's features - https://wpamelia.com/demos/

and there is a 15-day money-back guarantee period, so if you purchase the plugin, you can safely fully test it out,

we would assist you with our support along the way, and if it doesn't fit your needs you can request and receive a refund in that period.

Let us know if you have any questions.