problem with selecting multiple animations to import into geckolib

I have been trying to make a boss entity in mcreator. I have made the model and the animation though when I try to import the animation into mcreator from blockbench I first import the model then the pop-up for importing the animations come but when I try to select more than one animation by both draging my mouse while left clicking or using ctrl + A it just does'nt work I can only import one animation