It would be great to have context for the to-be-translated strings, and Transifex actually makes that possible ("Context" under "More info").
For example, the last string was "Seconds", and without any context a single word is especially hard to translate, at least into Finnish. Since there's no enumerator placeholder (e.g. "1%1$d"), I have to guess that this refers to the unit (e.g. "this is a selectable unit to display data in").
Even knowing the menu heading would help a lot; usage examples would be even better.
P.S. This thread because it seemed the most appropriate.