What are the legal conditions for combining several claims in a single statement of claim according to the Commercial Courts Law and its Implementing Regulations?

Article (20) of the Commercial Courts Law stipulates that it is not permissible to combine in the statement of claim several claims that are not related to each other. Article (77) of the Implementing Regulations of the Commercial Courts Law emphasizes the necessity for the statement of claim to include a statement of the connection between the claims when they are multiple, and the court shall rule the inadmissibility of the lawsuit if it includes claims that are not related to each other, unless the lawsuit is limited to one of them.