As a lender you may specify collateral groups instead of particular collateral asset to increase the possibility of matching of your order.
Currently we have implemented following groups: Liquid (ETH, BTC), Stable (USD, EUR, GBP), ERC-20 liquid (high liquid tokens), ERC-20 low liquid (low liquidity tokens).
Collateral groups imply that any collateral may be chosen from that group when borrower accepts your order and creates a trade.
To select collateral groups, navigate to the create new order sidebar and when selecting collateral assets as a lender select desired collateral groups:
After that hit OK button and specify initial haircut for each group, make sure your initial haircut is greater than 23.5% for liquid groups (Liquid, Stable, ERC-20 liquid) and 32% for other ERC20 tokens (ERC-20 low liquid group).