TOAD SQL Optimizer has no restart that I can find to recover from a lost database connection

Good Morning TOAD user community!

    TOAD SQL Optimizer has no restart that I can find to recover from a lost database connection.  I can reconnect in an editor window, but the optimization stays hung.  If I stop the optimization there is no restart, except start over in the SQL Optimizer tool.  How do I continue SQL optimization in TOAD after recovering from a database connection loss?

Larry