Explanation
Most achievements have five tiers. In these cases, you can use a %i and / or a %s in the achievement's name. In English, %i will be replaced by the corresponding roman tier number (I, II, III, ...) and %s will be replaced by one of the attributes ('Novice', 'Master', ...). Both of these can be translated as well, so you may get quite creative here :).
Source string description
Translators: The name of the 'Select %x items at depth 2 with mouse clicks.' achievement.Flags
ignore-end-space, ignore-same, javascript-format