gunnar add a custom combo class to whatever you want hidden (dont use something generic like hide or hide-tablet).
Then hide it in designer.
Then go to site settings, in the head custom code field, reference that custom combo class and do a display:flex!important; to show it on publish or when you preview with custom code enabled.
<style>
.custom-combo {
display: flex !important;
}
</style>
Should do the trick - going off memory from my phone.