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_user,project.gtd.context project user,model_project_gtd_context,project.group_project_user,1,0,0,0\r
   3 access_project_gtd_timebox_user,project.gtd.timebox project user,model_project_gtd_timebox,project.group_project_user,1,0,0,0\r
   4 access_project_gtd_context_manager,project.gtd.context project manager,model_project_gtd_context,project.group_project_manager,1,1,1,1\r
   5 access_project_gtd_timebox_manager,project.gtd.timebox project manager,model_project_gtd_timebox,project.group_project_manager,1,1,1,1\r