diff --git a/docs/configuration.md b/docs/configuration.md
index df116b3c2..bbadb87e8 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -301,8 +301,24 @@ This configuration enables binance, as well as rate limiting to avoid bans from
 
 !!! Note
     Optimal settings for rate limiting depend on the exchange and the size of the whitelist, so an ideal parameter will vary on many other settings.
-    We try to provide sensible defaults per exchange where possible, if you encounter bans please make sure that `"enableRateLimit"` is enabled and increase the `"rateLimit"` parameter step by step. 
+    We try to provide sensible defaults per exchange where possible, if you encounter bans please make sure that `"enableRateLimit"` is enabled and increase the `"rateLimit"` parameter step by step.
 
+#### Advanced FreqTrade Exchange configuration
+
+Advanced options can be configured using the `_ft_has_params` setting, which will override Defaults and exchange-specific behaviours.
+
+Available options are listed in the exchange-class as `_ft_has_default`.
+
+For example, to test the order type `FOK` with Kraken:
+
+```json
+"exchange": {
+    "name": "kraken",
+    "_ft_has_params": {"order_time_in_force": ["gtc", "fok"]}
+```
+
+!!! Warning
+    Please make sure to fully understand the impacts of these settings before modifying them.
 
 ### What values can be used for fiat_display_currency?