I've never run Filezilla Server, so I don't know if it has any built-in ways to deal with this.  But assuming it can deal with NTFS junctions, that's a fairly easy workaround.  Basically open a command prompt in the home directory or wherever you want the mount points to be and use the following command:

mklink /j E_Drive e:\
mklink /j F_Drive f:\


Change between drives in filezilla client
One needs often a symbol to denote the quotient of two (algebraic) objects. (e.g. quotient by a subgroup, subring, submodule etc.). In simple cases people use A/B. But when both A,B are complicated to write, this doesn't look good. e.g.  \mathcal{O}_{(V',0)}}/\mathcal{O}_{(V,0)}}

For some reasons people do not use just \frac{A}{B}. Is there some way to achieve the following:

$A$ raised a bit, then \Big/ then $B$ a bit lowered.
