there's a way to enter proxies for each identity built into the platform??

When I first joined Sidekick in 2022, I had the same question. Here is my conversation with team in Discord (I hope Sidekick team would update here if some of it already changed and we actually can add proxies for each account):

"Could you please expand on what "private" means? For example in browsers like Ghost, GoLogin, Chameleonmode, you can create a completely separate instance/profile that would have its own fingerprints and using a separate proxy for that specific profile. Is it something that Sidekick can do?

Reply:

Thank you for mentioning us.
Private accounts (accounts inside the app) mean that they have different cookies. There is no way to use a separate proxy.

Question 2:
When we create a new workspace, we still have the same Person 1 under the main SideKick, right? Is there a way to create a separate one like we create in chrome/brave, so it would say Client 1 account or Work Account? And we always would have the same extensions in all workspaces? or am I missing some settings where each workspace has its own extensions?

Reply:
Unfortunately, your Workspaces are not as independent as browser profiles yet. They will have different cookies, but system settings, extensions, history, and bookmarks stay the same. And yes, they are connected to one Sidekick account.
We're working on improving this aspect, but there is no ETA for such huge changes."