Change noHide option at high zoom levels

[little-gatsby]

Dear group
I am pretty new to programming - so maybe this is kind of a lame question :-)
This is my problem:
I have a set of markers, which are added to the map. Those markers are all attached with:
bindLabel({noHide: false})
If the zoom level of my Leaflet map changes to a value >= 11 I want the labels to be seen permanently.
Thus I want to change noHide to true.
I tried something like: mymarkers.setLabelNoHide(true).showLabel() and several variations of it.
Nothing worked so far :-(
Do you have any idea on how to do this?
Thanks in advance and a happy Easter monday
R