How to give name to the series after transformation?

Hello!

I use Grafana (v10.1.1) with AWS Cloudwatch metrics. For my dashboard I did 2 merge transformations and as a result got two series with the same name “Value”. Could someone suggest me how can I rename them? Thanks!

Regards,
Vytas

Moreover, I cannot change colour of each transformation, because the same colour is immediately applied to the other transformation also…