I need to be able to merge transactions that are days apart, which Koinly does not support.

Use Case: Jupiter Exchange's (jup.ag) Limit Order V2 allows you to open an order (like any CEX or stock exchange provider does) and keep it open for multiple days (up to years). When this order triggers I need to be able to link the original open order transaction with the close order transaction.

Yes please. DEX trades involve sending to a smart contract, waiting for the limit order to be met, then waiting for the coins to arrive. Sometimes these elements are not mergeable due to them spanning longer than the allowed length of time.

Yes