[FEAT] Enhanced Account Grouping and Tagging System

[yuvalsmart]

Description

I use KMyMoney on my desktop, which includes a financial institution model supporting groups and nested accounts.

I would like to request a similar feature — or alternatively, an account based tagging system — that allows accounts to be grouped, filtered, and reported on based on shared attributes.

This would be particularly useful for adding and organizing information such as:

• The country of an account
• Its liquidity level
• The ability to aggregate accounts together, even when they belong to different categories

Such a feature would greatly improve flexibility in reporting and analysis.

Additional Context

No response