diff --git a/Usecases/README.md b/Usecases/README.md
index 2c8f9daa7baa0c435bd6a44f1981bb63c316e4ac..2c8bfd2d7151933953b37ed68d7d140519f8c3e2 100644
--- a/Usecases/README.md
+++ b/Usecases/README.md
@@ -182,7 +182,16 @@ include_gravity = True
 debugflag = True
 analyse_condition = False
 ~~~
-This block sets parameters for the LDD solver. Namely L and λ
+This block sets parameters for the LDD solver. Namely L and λ.
+- `L`: Each subdomain (say with index k) should get up to a pair of L parameters
+one for each phase, i.e. `Lwk =` in the case of Richards and `Lwk =, Lnwk =` if two-phase flow is assumed.
+
+- `λ`: Similary, each interfaces should get a pair of λ values. Since in the above example we only have one interface, we only get one pair of λ values.
+See multi-domain examples for a generalisation.
+
+- `include_gravity = True/False`: toggle the inclusion of gravity.
+- `debugflag = True/False`: toggle debugging output.
+- `analyse_condition = False/False`: toggle the inclusion of condition number analysis. Setting this setting to `True` might impact performance since the calculation of condition numbers can be quite time consuming.
 
 ### I/O CONFIG
 ~~~python