There are a few situations where it may not apply - generally the more "dynamic" phrases (in terms of ones that are created for other content). What phrase are you editing?
There are a few situations where it may not apply - generally the more "dynamic" phrases (in terms of ones that are created for other content). What phrase are you editing?
You'd likely need to ask the add-on developer. In some situations, HTML is specifically designed to not be allowed (though again, this is really only the dynamic phrases).