Converting 3 tap hole to 1 hole mixer (without ripping out tiles)

[amelia]

Hi everyone

Currently renovating the laundry and I wanted to change my laundry taps to this type of pot filler spout: 

Only problem is they all seem to be one hole mixers (I can't find any with a separate spout and two taps - please let me know fi you know of any!). The existing plumbing has 3 holes (see picture below)

It it possible to use this and just put a filler / cup in the leftover holes? I don't know anything about how the plumbing works, does anything need to happen behind the walls to change to a mixer? I don't want to pull down the existing tiles, planning  on painting them.