How can we improve WHMCS?

At present, it's possible to configure the Quantity Options Slider with:
- Price per single increment
- Minimum Quantity
- Maximum Quantity

This works if your slider ranges from 1 to 10 Pcs or from 1 to 50 Pcs, increments are correctly set, prices can range correctly and the slider is correctly working.

But if for example we need to let the customer choose the reserved disk quota (for backups for example) with:
- Minimum quantity is 100 GB (this could be OK)
- Maximum quantity is 10TB (10000 GB)
- Price per each single GB is something like 0.1265 USD from 100GB to 1TB (price gets truncated)
- Price per each single GB is something like 0.1199 USD from 1TB to 5TB (it's not possible and price gets truncated)
- Price per each single GB is something like 0.1122 USD from 5TB to 10TB (it's not possible and price gets truncated)

It would be very helpful to have the quantity slider configuration options, like the ones proposed with the dropdown. So we can choose our single increments steps and we can choose the specific price at every specific step.

Thank you for consideration.