Insert spaces in captions category

[MarcoTúlio]

Hi,

I want to create a caption category named exemplo musical. However, LibreOffice does not allow spaces in the field category, not even no-break-spaces. (Ver. 4.3.5.2 running under Win 8.1). Does anybody know how to do that?

Thanks

[ROSt53]

Try it with an underscore: exemplo_musical.