Suggestion: Smoother skill bar shifting using left trigger

Currently, if you hold the Right Trigger (RT) down, you will continuously fire whatever skill (skill A) you have assigned to RT.

If you hold the Left Trigger (LT) and then pull the RT, you will then fire whatever skill (Skill B) you have assigned to RT on the second/alternate skill bar.

If I'm holding RT to continuously fire Skill A, I want to be able to smoothly shift to Skill B by pulling the LT while still holding RT.

However, this currently pauses all my input and I have to release RT and press it again to fire Skill B. This feels clunky in the middle of combat. Hope this is an easy fix or addition, depending on whatever technical reason it was set up like this in the first place.