Rotate an object on XYZ while using the last rotation value in Spark AR

I have a scene with a single world object, a plane tracker, and am using the patch editor
I can pan, scale, and rotate the object on a single axis (xyz)
I have a button that allows the user to change the rotation axis from x > y > z
When pressing that button, the object rotation value gets replaced by a new value and moves the object, which is annoying. For example, I rotate on X, tap button to rotate on Y, the X rotation is lost and replaced by new coords
On button press, I'd like to use the last rotation value and only modify the axis that the user selected
For example, if I rotate my object on the X axis, tap the button to Y, then I should now rotate on the Y axis while keeping the previous X axis value
Here is an example from my patch:

I can't "get" the current rotation value of an object using the patch editor. I've tried a block that has a child object, using that child object's rotation value, and then feeding that back into my object but I get loop errors. Essentially, all I want to do is use the current rotation value and on button press, modify the vector column (x, y, or z). Should I use a combination of patch + scripting? Can I do this in scripting alone?

Solution

Ok this one was easy, but interesting.