Link "structure" and "for each" pages to one another (#799)

Author: D8H

docs/gdevelop5/all-features/variables/structures-and-arrays/index.md

@@ -41,7 +41,7 @@ Arrays can be created in the Variables Editor, using events or by using an exten
 
     Array variables should only contain children of the same type, here numbers. When you need a mix of numbers and strings (or even only several numbers), you can make each child a structure as explained in the [Array of structures](#array-of-structures) section.
 
-## Accessing child variables in structures or arrays
+## Access child variables in structures or arrays
 
 Variables that exist within a collection variable (i.e: an array or a structure) are known as _child variables_.
 To access the value of a child variable, use the following syntax in an [expressions](/gdevelop5/all-features/expressions), replacing the values in angled brackets with variable names:
@@ -77,7 +77,7 @@ Parent variables need to be declared, but it's not the case for children variabl
 
     Just be careful the data doesn't become too difficult to manage if you create structures with a lot of variables.
 
-### Accessing child variables dynamically
+### Access child variables dynamically
 
 You can use expressions to dynamically access child variables.
 
@@ -87,6 +87,10 @@ For example, imagine storing the player's score for each level. If you want to s
 Scores.Alice.Levels[CurrentLevel]
 ```
 
+### Access every child variable
+
+["For each child variable" events](/gdevelop5/events/foreach-child-variable) give the child variables from structure variables (or arrays) one at a time to their sub-events.
+
 ### Array of structures
 
 Array variables can contain structure variables. It allows to have several values for one index.

docs/gdevelop5/events/foreach-child-variable/index.md

@@ -3,10 +3,14 @@ title: For each child variable event
 ---
 ## For each child variable (of a structure or array)
 
-**For each child variable** events give the [child variables](/gdevelop5/all-features/variables/) from structure variables (or arrays) one at a time to their sub-events.
+**For each child variable** events give the child variables from [structure variables (or arrays)](/gdevelop5/all-features/variables/structures-and-arrays) one at a time to their sub-events.
 
 This event stores the value of each child variable (as a string or number) and the name of the child variable (as a string) into variables you specify in the parameters of the event. You can use either scene variables or [local variables](/gdevelop5/all-features/variables/local-variables) for the variable to iterate on, for the variable storing the child value, and for the optional variable storing the child name.
 
+!!! tip
+
+    The ["Array tool" extension](/gdevelop5/extensions/array-tools) allows to search, sort, shuffle... without having to make your own loop.
+
 ## Local variables
 
 For Each Child Variable events support [local variables](/gdevelop5/all-features/variables/local-variables). Local variables declared in this event are scoped to the loop: they are initialized before the loop starts and are only accessible within the loop and its sub-events.