on the blender side, before you export make sure that in the dope sheet (in the action editor mode) that you have the action you want selected. then when you go to export the FBX that you select the all actions button, when you hit this button all actions you make will go with the rig but only the one you have selected will play in unity. Also you may want to set the scale from 1 to something bigger like 10, and getting rid of the actions that cilender. whatever.whatever but thats really just housekeeping. when you drag and drop the FBX file into unity the animation should play once when you hit play button. from there it’s all unity, which i don’t know much about unfortunately.
