Forna-container Zoom Problem

[lacoak21]

When you first display the structure in the forna container you can zoom into the structure with the mouse positioned anywhere. After the first time, the ability to do this goes away and you have to hover your mouse over a base to zoom. I am displaying some genes quite large and to find the exact spot to zoom can be extremely difficult.

Is it possible to add zoom buttons instead?

python version 3.8