Apply automessage settings to custom types

// Detailed description of issue.
Is it possible to apply automessage settings to specific channels only? Using custom_type or some other flag? We have groups and supergroups and we want the “User joined.” and “User left group” messages to only show in the groups, not supergroups. We have hundreds of users in the supergroups and those messages become annoying.

// If problem, please fill out the below. If question, please delete.
[UIKit Version]
// What version of the SDK are you using?

[Reproduction Steps]
// Please provide reproduction steps and, if possible, code snippets.
Create a group and a supergroup and note that the settings to show/hide join/leave messages apply to both group types.

// How frequently is this issue occurring?
All the time.

[Current impact]
// How is this currently impacting your implementation?
This impacts our ability to use certain features that make sense for groups but not for supergroups.