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When displaying an asynchronous panel, it is possible to receive output directed to the panel while input is being entered. This could result in partially updated panel input fields being reset when the panel is redisplayed to reflect the received output.
The FMTINPUT operand of the #OPT statement in a panel definition determines if input fields are formatted when a panel is displayed. This operand can be used to control input field re-initialization for both synchronous and asynchronous panels.
In the case of asynchronous panels, if the FMTINPUT operand is not specified in the panel definition, the input fields are reset only the first time the panel is displayed or when the panel is redisplayed after the operator has signaled the end of input (by pressing Enter or a defined Function key). This means that input can be entered continuously by the operator while the panel output fields are being rewritten as output is directed to the terminal. If the FMTINPUT operand is specified in the panel definition, input field initialization is processed as defined by the operands to #OPT statement.
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