Adjustment Layer Functionality

The adjustment layer was my most desired feature for Resolve. Unfortunately the functionality in its current implementation is fairly limited by not being able to apply transitions, or apply Fusion effects to the adjustment layer.
Also, would be nice to be able to apply the adjustment layer as a quasi-node so that adjustments for certain layers could be turned off and you could composite video behind an adjustment layer that has been scaled to less than 100%.
What I was hoping to eventually be able to do is build out effect templates in Fusion and then apply these as custom transitions, or A/B PIP transform templates.
Also, would be nice to be able to apply the adjustment layer as a quasi-node so that adjustments for certain layers could be turned off and you could composite video behind an adjustment layer that has been scaled to less than 100%.
What I was hoping to eventually be able to do is build out effect templates in Fusion and then apply these as custom transitions, or A/B PIP transform templates.