How can I insert into an expression without rewritting it?

[yuehong]

For example, I have an expression that looks like this:

This Order's Customer's Name contains Input Search's value or This Order's.......

which I want to change to:

This Order's Customer's Name:lowercase contains Input Search's keywords or This Order's.......

The problem is, when I need to insert something into the middle of the expression, I have to rewrite the rest of it. Is there any way to insert without rewriting the rest of it?

[Newed]

Unfortunately, this is how things work at the moment. There was a project in the past to allow this type of expression manipulation, but it was discontinued. Who knows in the future…