addons/project_gtd/security/ir.model.access.csv

   1 id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink\r
   2 access_project_gtd_context,project.gtd.context,model_project_gtd_context,base.group_user,1,0,0,0\r
   3 access_project_gtd_timebox,project.gtd.timebox,model_project_gtd_timebox,base.group_user,1,0,0,0\r