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--------------------------------- UPDATE 29.01.2022 With Arma 3 2.06+ it is now possible to use regexReplace instead: https://community.bistudio.com/wiki/regexReplace Performance: ["12345 123456", "123", "abc"] call TER_fnc_editString; Execution Time: 0.0093 ms | Cycles: 10000/10000 | Total Time: 93 ms "12345 123456" regexReplace ["123/g", "abc"] Execution Time: 0.0016 ms | Cycles: 10000/10000 | Total Time: 16 ms --------------------------------- Hello everyone, I just wanted to share a small function. It can replace certain parts of a string with your own string. /* Author: Terra Description: Substitute a certain part of a string with another string. Parameters: 1: STRING - Source string 2: STRING - Part to edit 3: STRING - Substitution Returns: STRING Example: ["12345 123456", "123", "abc"] call TER_fnc_editString; Returns: "abc45 abc456" */ TER_fnc_editString = { params ["_str", "_toFind", "_subsitution"]; _char = count _toFind; _no = _str find _toFind; while {-1 != _str find _toFind} do { _no = _str find _toFind; _splitStr = _str splitString ""; _splitStr deleteRange [(_no +1), _char -1]; _splitStr set [_no, _subsitution]; _str = _splitStr joinString ""; }; _str }; Additional information:

Hey guys, if it's not too late and somone else stumbles upon this problem then I might have found a solution: _tooltip = str composeText ["Line1",toString [13, 10],"Line2"]; _control ctrlSetTooltip _tooltip; The "toString [13, 10]" is the linebreak.