Tracking asset trades

[brickpop]

Describe the feature

Allow to register transactions in the form of a trade:

• From account: Coinbase USD
• To account: BTC wallet
• From amount: 90000 (USD)
• To amount: 1 (BTC)

Fees (optional):

• From: 50 USD
• To: 0.00001 BTC

Why is this feature important?

The current implementation focuses on how many assets you have. However, for many people it is crucial to keep track of:

• Acquisition price, sale price
• Asset balance change
• Trading fees
• Capital gains or losses
• Tax reporting

Currently, the UI allows to "transfer" money between accounts of different currencies, which seems incorrect (see example below).
Ideally, these should be restricted to only trades, whereas transfers should only be of the same coin/asset.

Additional context, screenshots, and relevant links

As said, transferring money from accounts of different assets seems to be possible, which doesn't seem to be working anyway:

The project looks extremely promising, thank you for the awesome work :)
If this feature can be part of the roadmap, using it will be inevitable