Set one or more replacement variables specified using field parameters with name=value syntax or loaded from a property file. Value specified replaces any previously set variable with the same name including values set by other actions that set replacement variables. This is an example to save a previously set value, use '--field myIssue=@issue@'. Find and replace logic is applied to the value before setting the variable providing a way to manipulate values in a script. Variables are available only within the scope of the run script they were set in. If a regex based condition is provide using the regex and value parameters, the variables will only be set if the regex condition is met. By default, the regex is used for a find of the value parameter. The options parameter can be set to one or more of the following to modify the default behavior - literal - to treat the regex string as a literal string, exact - to require an exact match of the value, negative - to reverse the condition so a match means do NOT set the variables. In addition, use blank for the regex parameter to match on an empty string.