Focus stacking

I have the Manfrotto 454 but it is single way.
Not proved a real bother. Just need to get the tripod stable and in the right position.
This can be a bother when shooting in the field but used in a studio or, as I do, my greenhouse to avoid movement of the subject then I am satisfied with my results.
Yet to try this focus stacking, though

If one has the K-7/ K-5 one can do slight sideways and up/down adjustments using Composition Adjust - very useful feature, so for some shots only a 2-way focus rail is needed
Andy