Sure thing - if you want to copy land uses between models, please save them first in Extensions > Modelur > Store Land Uses
. Then, in other model, import them using Extensions > Modelur > Import Land Uses
way, if you want to have the current land uses opened each time, is to
save them as default settings. This can be done using Modelur's menu
Options > Save Default Settings. Please note that this will save all
settings, including default parameters values, preferences, etc.
last thing, if you just need to copy buildings with non-default land
use from one model to another, you can turn on the option Store Land Use Changes
under Modelur UI > Options. This will again store your current land
uses and any changes you make after turning on this functionality.
Hope this helps?