I run into a problem with keywords for transcriber. If I'm not mistaken keywords can not containe dash (-), is there a regexp of allowed characters or forbiden ones for that mater?

@utvara Keywords for the transcriber should typically consist of alphanumeric characters. Special characters like dashes (-) are often not supported because they can interfere with the transcription process or be interpreted in unintended ways. While I don't have a specific regular expression pattern for allowed or forbidden characters at hand, it's generally safe to stick to letters (both uppercase and lowercase) and numbers. If you need a definitive list of allowed characters or a regular expression pattern, please ask support for more info on this.

Regarding your concern about the dash (-), it is not allowed in the pattern.