The new 'Importer' allows physics shapes to be crafted inside entities and exported, and we also have a plan for a new collision mode (51) which will scan the trunk of a tree and create a cylinder collision shape to allow players to sweep around trees smoothly. Right now the tree is using polygon collision which means every polygon is accounted for. As the collision shape is an internal setting it cannot be modified from the IDE, but if you really want a solution right now, you can open the FPE in Notepad by going to: C:\Program Files (x86)\The Game Creators\FPS Creator Reloaded\Files\entitybank\Foliage\Spruce 02 (Animated).fpe and changing collisionmode = 0 and then deleting the associated .BIN file (Spruce 02 (Animated).bin). Remember to restart the software in order to see the effects of this internal collision change. For reference collisionmode=0 will be box collision and collisionmode=11 is no collision whatsoever.
PC SPECS: Windows 7 Ultimate 64-bit, Intel Core i7 920 (PASSMARK:5008), NVIDIA Geforce 9600 GT GPU (PASSMARK:752) , 6GB RAM