GroupBy node Request: To include Geometric Standard Deviation

With the GroupBy node, please can the Geometric Standard deviation be added into the Aggregate options to complement the Geometric Mean.

At the moment I am having to generate the Logs, take the SD, and then convert back. Would be useful not to keep doing this.





Would be nice also to include the option to specify the percentile value you want, I.e. 10th and 90th percentile so you can determine a range which covers the bulk of the data.

Any possibility of these options going into 2.6 ?