Feature request `keep-one-line-enums`

I'm using keep-one-line-statements and keep-one-line-blocks which works in the intended way.

To keep the global scope as clean as possible, I tend to replace #defines by embedded enums like in the following case.

struct MsgRec
{
    // (parts ommited)
    enum { MAX_MSG_LEN=1024 };
    char msg[MAX_MSG_LEN];     // message text
};

Unfortunately, astyle always breaks the line after the keyword "enum", which impairs readability:

struct MsgRec
{
    // (parts ommited)
    enum
    { MAX_MSG_LEN=1024 };
    char msg[MAX_MSG_LEN];     // message text
};

Is there maybe already a way to achieve my goal? If not, may I request a new option?