Exactly. The vast majority of "exotic" order types fall into generally two categories:
1) Orders that help deal with the asynchronous nature of the market. Removing the restriction on locked markets can reduce the need for these orders, but with that restriction in place these orders are a net benefit IMO.
2) Orders that help a participant control how an order is filled. Post only, etc, to ensure one gets a passive fill vs taking liquidity.
There are no secrets here. These orders are all public. Whether you can use them or not is up to how you get to the market.
1) Orders that help deal with the asynchronous nature of the market. Removing the restriction on locked markets can reduce the need for these orders, but with that restriction in place these orders are a net benefit IMO.
2) Orders that help a participant control how an order is filled. Post only, etc, to ensure one gets a passive fill vs taking liquidity.
There are no secrets here. These orders are all public. Whether you can use them or not is up to how you get to the market.