diff --git a/web/content/docs/processes/component-transport/_index.md b/web/content/docs/processes/component-transport/_index.md
index eaf72d661d258c36eceec610ff2e363873ecda83..f0942c7eb7ccdf27ed073e077d0751457595c7a9 100644
--- a/web/content/docs/processes/component-transport/_index.md
+++ b/web/content/docs/processes/component-transport/_index.md
@@ -1,4 +1,4 @@
 +++
 title = "Component Transport"
-weight = 3
+weight = 4
 +++
diff --git a/web/content/docs/processes/heat-transport/_index.md b/web/content/docs/processes/heat-transport/_index.md
index c2b9d5a1c57a77ba9394aeb31d0bf940529d5742..7c4e41236bc26b4ee43731d5a5c83733e3e72e52 100644
--- a/web/content/docs/processes/heat-transport/_index.md
+++ b/web/content/docs/processes/heat-transport/_index.md
@@ -1,4 +1,4 @@
 +++
 title = "Heat Transport"
-weight = 1
+weight = 2
 +++
diff --git a/web/content/docs/processes/multiphase/_index.md b/web/content/docs/processes/multiphase/_index.md
index 56704bd29f59c961236d5df970f6a8322080c46e..bcc8d9c99c84c16e96b45e843f6dad0a7d8a2234 100644
--- a/web/content/docs/processes/multiphase/_index.md
+++ b/web/content/docs/processes/multiphase/_index.md
@@ -1,4 +1,4 @@
 +++
 title = "Multiphase"
-weight = 2
+weight = 3
 +++
diff --git a/web/content/docs/processes/overview/_index.md b/web/content/docs/processes/overview/_index.md
new file mode 100644
index 0000000000000000000000000000000000000000..c0e9d59c99bd54b6aaff1895838a1777bacf4046
--- /dev/null
+++ b/web/content/docs/processes/overview/_index.md
@@ -0,0 +1,9 @@
++++
+date = "2024-12-13T12:00:00+01:00"
+title = "Overview"
+author = "Maximilian Dörnbrack
+weight = 1
+
+
+## Description
+Some process features of OGS are more complicated and need an extended description of the functions in the project files (.prj). The following is a collection of this extended documentation of certain processes or features. This list is unfortunately not complete but is constantly being expanded.
\ No newline at end of file
diff --git a/web/content/docs/processes/shared-content/effective-thermal-conductivity-porosity-mixing.md b/web/content/docs/processes/shared-content/_index.md
similarity index 94%
rename from web/content/docs/processes/shared-content/effective-thermal-conductivity-porosity-mixing.md
rename to web/content/docs/processes/shared-content/_index.md
index 158a9253a2ccd6ecb9c59d6332d378afbbc6e5a1..1fc3c34b4bfd3410d4f4bf215b7ad325bdf3ab81 100644
--- a/web/content/docs/processes/shared-content/effective-thermal-conductivity-porosity-mixing.md
+++ b/web/content/docs/processes/shared-content/_index.md
@@ -1,3 +1,10 @@
++++
+date = "2023-03-09 09:22:24"
+title = "Thermal conductivity: effective porosity mixing"
+author = "Feliks Kiszkurno"
+weight = 6
++++
+
 In some process, the effective thermal conductivity can be calculated automatically depending on the conductivities of solid and liquid phases and porosity.
 
 Following example can be considered: the Layer0 is a porous clay fully saturated by water. In such a case, in order to run simulation for correct value of thermal conductivity for such a medium, there has to be separate values for thermal conductivity of water (in liquid phase) and clay (in solid phase) defined. Those two values together with porosity can be used to obtain parameter representative for the whole medium. It can be done with following equation for volumetric mixing:
diff --git a/web/content/docs/processes/thermal-processes/_index.md b/web/content/docs/processes/thermal-processes/_index.md
index 90a3415dafe372d69a5a41a6b27f6834f63d9ee7..654d22d36ba1559bbeebf2670860ab27c20139d5 100644
--- a/web/content/docs/processes/thermal-processes/_index.md
+++ b/web/content/docs/processes/thermal-processes/_index.md
@@ -2,5 +2,5 @@
 author = "Feliks Kiszkurno"
 date = "2023-01-10"
 title = "Thermal processes"
-weight = 2
+weight = 5
 +++