Multiple contract filter doesn't work

[ailisp]

From https://docs.near.org/bos/queryapi/index-functions#multiple-contracts-filter, it allows

if you want to get events from every contract on the blockchain, simply define * as the filter.

However it's not allowed on the UI:

[gabehamilton]

@bucanero @pkudinov I think we should update the docs to take out this sentence and say that it's not supported but is on the longer term roadmap. We could also include a link to the BigQuery dataset since some * usages will be analytical cases better suited to BigQuery.

[pkudinov]

I think we will prioritize this for this quarter