A vertical does not let you do that.
A pair of phased verticals will let you do this - either using the Christman feed method or a DX Engineering PVS-2.
You get broad side and end fire directions. You don't have to go use the "armstrong method" to turn it - just switch from the shack.
Three verticals in a triangle are better, and a 4 square - 4 cardioid directions - which cover everything.
But the 2 element end fire / broadsided approach is what I think is best for a DX-peditrion - when you are right at waters edge.
You can sort of do this with 2 half squares perpendicular to each other and switched. A K1WA Array on a single fiberglass mast can give you 4 - or more directions - and all used with a single simple switch - that gets its power from the feedline.
The downside is that these are monoband antenna systems, so a multiband yagi can do fine - if up 1/2 wl.