Blender Files Panel für Tiles

import bpy
import os

# -----------------------------------------------------------------------------------------------------
# the panel is in the properties sidebar.
# -----------------------------------------------------------------------------------------------------

class FileItem(bpy.types.UIList):
    name = bpy.props.StringProperty(name="name", default="Unknown")
    tooltip = bpy.props.StringProperty(name="tooltip", default="Hover me!")
    value = bpy.props.IntProperty(name="value", default=22)

    # TODO: ggf. hier noch draw_item() ueberschreiben, wenn du ein bestimmtes Aussehen haben willst.

class FilesProperties(bpy.types.PropertyGroup)
    item_index = bpy.props.IntProperty(name="item_index", default=0)
    items = bpy.props.CollectionProperty(name="items", type=FileItem)

class VIEW3D_read_dir(bpy.types.Operator):
    """Refresh the file list and save it in a scene property."""
    bl_idname = "view3d.read_dir"
    bl_label = "Read Dir"

    def execute(self, context):

        scene = context.scene

        scene.view3d_files.items.clear()

        start_path = 'C:/Users/x/Documents' # current directory. Change to your needs. Do NOT use backslashes here.
        for path,dirs,files in os.walk(start_path):
            for filename in files:
                if filename.endswith(".blend"):
                    item = scene.view3d_files.items.add()
                    item.name = os.path.join(filename)
                    item.tooltip = "Dummy Tooltip"

        return {'FINISHED'}

class FilesPanel(bpy.types.Panel):
    bl_label = "FilesPanel"
    bl_space_type = 'VIEW_3D'
    bl_region_type = 'UI'

    def draw(self, context):
        layout = self.layout

        layout.operator("view3d.read_dir", text="read directory")

        scene = context.scene
        row = layout.row()

        layout.template_list(listtype_name="FileItem",
            list_id="View3dList",
            dataptr=scene.view3d_files,
            propname="items",
            active_dataptr=scene.view3d_files,
            active_propname="item_index",
            item_dyntip_propname="tooltip",
            rows=5,
            maxrows=5,
            type='DEFAULT')

# ------------------------------ register unregister --------------------------------------------------------

def register():
    bpy.utils.register_class(FileItem)
    bpy.utils.register_class(FilesProperties)
    bpy.utils.register_class(FilesPanel)
    inject_properties()


def unregister():
    bpy.utils.unregister_class(FileItem)
    bpy.utils.unregister_class(FilesProperties)
    bpy.utils.unregister_class(FilesPanel)
    remove_properties()

def inject_properties():
    bpy.types.Scene.view3d_files = bpy.props.PointerProperty(type=FilesProperties)

def remove_properties():
    del bpy.types.Scene.view3d_files

if __name__ == "__main__":
    register()