Hi Ferret users,I just wonder is there any possible way to change the dimension in my data from 4D to 3D,let say i have zonal wind data only at level 200 hPa thus U [time x lev x lat x lon] and i want to removethe level dimension inside thus later i just have U [time x lat x lon]. Since it only consist of 1 level, i don't need "level" dimension inside my data.Thanks for your help.