Kevin, Wesley,   This option is required for the TBB tabbing to work, as, apart from the visible Text Box fields, we have groups and other controls that are not visible and this is blocking the tabbing, if the option is not set to "All Controls". Setting this option to "All Controls" is not a workaround, it is required by design. I hope it is not a problem to have this option set to "All Controls".   Best Regards, Niko