+<p>
+
+After getting the results, you can untick various trades individually,
+and select `Update' to get a new plan. The unticked trades will be
+excluded from the voyage plan (if any) and also from the totals.
+
+<h3>Vessel capacity</h3>
+
+If you don't specify a vessel or a vessel capacity, the trading plan
+will not take into account the fact that your voyage will be on a ship
+with a limited size. This will probably result in a plan
+which trades excessively cumbersome goods (eg. hemp, wood, iron).
+
+<p>
+
+So you should specify your vessel capacity. Currently you must
+specify the actual mass and volume, as two numbers each with units.
+The system understands the units t (tonnes), kg, l and kl
+(kilolitres). There should be a space between the two limits, and no
+space before the unit.
+
+<h3>Expected losses</h3>
+
+In theory if you were guaranteed to have a trouble-free voyage it
+would be worth trading goods at very low margins. However, in
+practice problems can arise: you may be attacked and lose your stock,
+or market conditions may change between your collection and delivery
+of the goods.