Here's one example where the wording can be improved. In Part 13: Preview Mode of http://zcguides.celestialrealm.net/t...s/main/ch02-06 we have:

However, ZQuest 2.50 has a useful feature that will allow you to see if it is working properly without having to open the quest: Preview Mode.
After you've selected File->Open and loaded a QST file you've opened the quest. I believe they meant to say "without having to test the quest"