Comments/Ratings for a Single Item

Can you clarify the rule regarding making up to five suggestions please?

Can an entrant make his or her suggestions in more than one email at
various times or must an entrant make all of his or her suggestions in one
email such that if that email contains less than five suggestions then
nevertheless that is all the suggestions that that entrant may make in
this contest?

Is there any possibility that the rules of this contest might be changed
so as to state 'a total of up to five suggestions, sent in one or more
emails, in each calendar month during the running time of the contest'
please?

Could you clarify the rule about suggestions concerning pieces please?

Where pieces are colourbound, is it permissible to have a suggestion about
changing a piece where the change depends upon the colour of the square
upon which the piece starts?  This would mean that pieces with more than
one item of that type on the board could be split into two types of
pieces: however that would only work if the pieces for which they become
changed are colourbound.

For example, suppose that someone wished to suggest that a knight upon its
own colour becomes swapped for a (2,2) leaper and that a knight upon its
countercolour becomes swapped for a (3,1) leaper.  Would that suggestion
be permissible under the rules?

Please note that I am not wishing to make that suggestion, I am just using
it as a way of illustrating the question which I am asking about the rules
so that, if it is permissible, further thought may be given to the matter
of what substitutions to suggest.

The minor tweaks I added should answer your questions.  (Yes, you can
spread out your official suggestions.  Yes, you can make a split
nomination for a piece.)

Thanks for asking!