This idea has been merged into another idea. To comment or vote on this idea, please visit DMA-I-21 @URLOpen should allow to generate links/protocols other than http(s) and mailto.
The double point (colon) of the URL is missing when using the @Formula @OpenURL or the LotusScript function in order to open a third party URL like "abcdef://abcdef". The resulting URL is "abcdef//abcedef".
This issue does not occurred when using a https://. Even Apple URL like phone: is working fine.
Nomad should support custom schemes.