Q: On the right-hand side of the screen I just see many grey boxes with question marks inside them. What are they?
A: By default Ocelot renders all ITS metadata which does not have a rendering definition within the .ocelot/rule.properties file in this way. This means that you can always see which segments have metadata.
Q:Within the source and target segments are series of two "tofu"/empty box characters. What are they?
A:These represent inline XLIFF markup. If you click on the segment and then look on the left-hand side of the interface you will see the markup rendered in its raw state. You cannot delete or separate the two empty boxes within the editing cell but you van move them and copy/paste them.