The value of a ''dynamic variable'' can be '''set''' at any point. Eg, ''prop.a'' is set to the text "A": |'''set'''|prop.a|''to''|A| To use the value of a ''dynamic variable'', use the @{} form. Eg, here we use the action ''get'' to access the literal text "A" and compare it to the value: |''get''|A|'''is'''|@{prop.a}| Here we reverse things and use the action ''get'' to access the value of the ''dynamic variable'': |''get''|@{prop.a}|'''is'''|A| |''get''|@{prop.a}|'''is'''|@{prop.a}| A cell may contain several ''dynamic variables along with text: |'''set'''|prop.b|''to''|B| |''get''|--@{prop.a}++@{prop.b}|'''is'''|--A++B| |''get''|@{prop.b}+@{prop.a}|'''is'''|B+A|