[Wien] Can I reduce size of vector files in band calculation

[pluto]

Dear All,

I am calculating bands for a mesh of k-points for a big slab (e.g. 51x51 
kpoints)

Vector files become very large during such band structure calculation 
and I am having disk space issues.

Is there a way to reduce the size of vector files? It is FM+SOC 
calculation, so I cannot separately calculate up/dn spins.

I only need valence bands, say down to 10 eV binding.

Best,
Lukasz