Can i add a field weightage/boost globally for search In Elasticsearch?

[Rahul_Juneja]

GET posts/_search
{ "query": { "multi_match": { "query": "sport", "fields": [ "name^1", "description^2", "keywords^3" ] } } }

I want to avoid this ^1, ^2, ^3 and set it globally. So that I can Search directly with predefined weightage of fields.

{ "query": { "multi_match": { "query": "sport", "fields": [ "name", "description", "keywords" ] } } }