TKL uses the version of OpenLDAP from the Debian repos (not upstream). Theoretically any instructions that apply to OpenLDAP should also apply to the TKL OpenLDAP appliance. However, from what I have read the Debian OpenLDAP settings are particularly 'locked down' so if you run into permission problems you may need to do a little more digging.

Google should get you going in the right direction. Here is one result that looks like it could contain some valuable info!?