Merge one size variant into two tilter groups

[Locoskates]

We have inventory with complex size variants. For example, some product variants are size UK10, some are UK11 and others are UK10-11. I need the UK10-11 to sit in both the UK10 and UK11 filters. However, Search and Discovery only allows you to merge a variant into one group. 

Is it possible to merge UK10-11 into both the UK10 and UK11 filter groups?

[gooner2402]

Hi, have you found any solutions as to how to solve this?

Thanks