In the left part of the window always those categories of elements are listed which are relevant for the current insert position,. e.g. ST Operators, Local Variables, Global Variables, Standard Programs, Defined Programs, Watch Expressions etc. In the right part of the window the elements of the selected category are listed simply linearly sorted in alphabetical order.

At various places (e.g. in the Watch List), multi-stage variable names are required. In that event the input assistant displays the available variables with a preceded POU name, resp. in case of structured variables and function block instances additionally with the FB name resp. data type  name. Examples: PLC_PRG.ivar, PLC_PRG.Structure1.Component1. For global variables no POU name is added.

The desired element must be selected and then will be inserted at the insert position by OK.

When the non-structured input assistant is used in the Watch- and Recipe Manager, then the range of offered watch variables (Watch Expressions) can be reduced by a filter.

You can switch to structured display through activation of the Structured Display