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Select the applications that you want customised then click "SAVE".
The selected applications will now be added to your customisation, and you should see something similar to the screenshot below;
For UI customisations we suggest leaving the Language option empty (if this option is used it will cause the UI customisation to be disabled unless the specific language is selected). Leaving this option blank will not prevent you from customising text messages (these customisations can still be made using the resource editor).
You will now need to supply the actual customisations that are to be applied to the logon screen then enable the customisation by clicking on the "Enabled" checkbox, then clicking on the "SAVE" button.
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