Proclaim is allowing me to italicise a custom caption in the 'customize' screen by using the 'I' button under the custom field (as per below),

However, although the custom field responds to the combination quick key combination of ctrl and I, the main screen does not (as per below),

Moreover, although I am not sure whether this is by design or related to the issue above, there appears to be no way to italicise a single word in a sentence (I can italicise a single word in the custom field using the quick key combination, ctrl and L, but this does not carry over to the main screen). The 'I' button (under the custom field) will only apply to the entire field (results as per below),

This same limitation applies with bold (i.e. the short cut combination, ctrl and B, puts the text in the custom field in bold, but not on the main screen). I am, therefore, unable to emphasise a single word within a custom field by using bold.
Andy