Create conditions based on shipping method’s title

Hello, I have a pro version of this plugin as well as the Shipping Discount extension plugin.

I have 2 shipping methods created with this same plugin:
– Instant 1
– Express
https://snipboard.io/wZdPWB.jpg

And I need to set a Shipping Discount with the following conditions:
– If chosen shipping method is “Instant 1”, get $10 shipping discount.
– If chosen shipping method is “Express”, get $30 shipping discount.

However, I can’t set the shipping method by their title (See: https://snipboard.io/wUdh2A.jpg).

All the shipping methods that I have created can only be created when I tried searching it by the shipping method’s description (See: https://snipboard.io/3CqKwM.jpg)

I have tried choosing & testing the shown “Custom shipping” options one by one. However, the shipping discount is applied to all shipping method (Both Instant 1 and Express got the same discount of $10, which is not what I intended).

Is there a solution for this? Thank you