RSRP-102654: Changing lambda to expression

I have the following lambda assigned to an event:

ReevaluateButton.ItemClick += (sender, args) => Engine.ReevaluateStatements(); –(1)

I'm aiming at getting to:

ReevaluateButton.ItemClick += (sender, args) => { if (Engine != null) Engine.ReevaluateStatements(); }; –(2)

The route I take is to first add the condition to (1) above:

ReevaluateButton.ItemClick += (sender, args) => if (Engine != null) Engine.ReevaluateStatements(); –(3)

Then I use the context action to take me to an anonymous method, giving:

ReevaluateButton.ItemClick += delegate if (Engine != null) Engine.ReevaluateStatements(); –(4)

To Lambda and Insert Signature from (4) give respectively:

ReevaluateButton.ItemClick += ((sender, args) => ) if (Engine != null) Engine.ReevaluateStatements();
ReevaluateButton.ItemClick += delegate(object sender, ItemClickEventArgs e) { } if (Engine != null) Engine.ReevaluateStatements();

It would be nice to be able to go from (1) to (2) using a To Lambda context action.

Also, if I am at position (3) and type a brace immediately frior to the if I get:

ReevaluateButton.ItemClick += (sender, args) => {}if (Engine != null) Engine.ReevaluateStatements();

It would be nice if this action led to (2) also.

It might be worth noting that http://www.jetbrains.net/jira/browse/RSRP-97543 arose whilst I was doing the refactorings above.