The LEAF's two charging timers, for me, are a good fit with the two main ways I use the car on any given day: either for short local errands, or for long-distance trips (probably involving QCs en route). I've got my LEAF's Timer #1 set up to charge for just one hour at the cheapest time; enough to cover one or two days' errands. Timer #2 is set up to hit 100% charge just before a morning departure. Both timers are enabled for every day of the week, so all I need to do, if anything, to prepare for the next day's driving is to turn the appropriate timer ON, and the other OFF.
The 2018 LEAF's menus for manipulating these timer ON/OFF controls are buried inside the specific setup submenus for Timer1 and Timer2. The higher-level menu governing both timers should provide a way to turn them on or off, without needing to drill down any further.