HFM provides a Closing rate to translate Balance sheet data and an Average rate to translate Profit & Loss data. There is not an Historical exchange rate to translate the equity movements.
A quick solution to keep the equity translated at the historical exchange rate is a manual journal entry with journal HFM module.
Another solution developed by Experlab is an HFM rule on consolidation currency: all the exchange effects on equity accounts coming from a different Closing rate are reversed on a single equity account.
For more info on this or other HFM translation topics: mailto support@experlab.it or s.francese@experlab.it