I am afraid that currently you will only be able to see bonds in synced brokerage accounts.
We list tickers and prices of the bonds you own on all synced brokerage accounts. However, you won't see gains, losses or price changes for your bonds due to a lack of intra-day pricing data. All data will appear only when it is pulled from the brokerage nightly.
We currently don't offer the functionality of tracking bonds in portfolios you created manually