Yes, I understand what you mean. But you can get something working by doing something like this:
HTML Prompt Test.kmmacros (3.1 KB)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<script type="text/javascript">
function KMWindow() {
document.getElementById("ωMyTmp").value = window.KeyboardMaestro.GetVariable("ωMyTmp");
}
function submitWindow(result) {
window.KeyboardMaestro.SetVariable("ωMyTmp", document.getElementById("ωMyTmp").value);
window.KeyboardMaestro.Submit(result);
}
</script>
</head>
<body>
<form>
<p>
<label class="label">Set Variable:
<input id="ωMyTmp" name="ωMyTmp1" type="text" autofocus>
</label>
</p>
<div>
<button name="OK" class="button-default" onclick="submitWindow('OK')">OK</button>
</div>
</form>
</body>
</html>