I'm not really familiar with BELLO, but how are you attempting to access the ornaments - and do you actually mean ornaments, or the various "words" built into the font? Going through the Glyph palette in InDesign you should have access to every individual glyph, but I'd guess that the auto-replacements are either discretionary ligatures or contextual alternates, both of which can be "turned on" in the Character palette.
The BELLO PDF seems to have a bunch of keystroke options for placing some of the features, but I can't quite figure them out. Have a look.
Hold on, do you mean how do you add a glyph from the Glyph palette into your text? On the crazy chance that this is what you mean, just put your cursor in your text box and then double-click on the glyph you want in the Glyph palette. Shazam.
If that's not what you meant, sorry to state the obvious.
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