condition to wait for a panel container has loaded

Hi, 

i have modified a skin to add panel container at home screen. but if i click on a button before the panel has fully loaded kodi hangs. So i want to try and delay buttons container from viewing until the panel container is fully loaded. 

visibility and enable tags are what i tried to work with, but for hours with wiki look up, without a solution I am not an expert in this field, so would be great if someone could help on this.