multilist store many lists in 1 lists with 1 or 2 more pointing-lists.

copy/modify/transfer /sullperm

// [[mlist]] is a long list that stores multiple lists. It uses the list "mpoint" as pointers.
// [[mlplist]] contains [[mlist]] with some functions that make it easier to use: it uses the list "mlp" to point at "mpoint" or to point at empty list [];

//uses only 3 functions

void mlpadd(list) "add entry"

list mlpget(int) "read and keep"

list mlprem(int) "read,remove and switch mode of adding next entry to re-insert"

//list a;
//integer int;

//mlpadd(a); //stores a sub-list within [[mlist]]
//list a = mlpget(int); //returns the int'th sub-list of [[mlist]]
//list a = mlprem(int); //returns the int'th sub-list of [[mlist]], removes the int'th entry from mlist, and switched "mode" of "mlpadd(list)":
//a=a+["edit"]; //etit a read entry.
//mlpadd(a); //[in switched mode] re-inserts an edited list into position "int" (instead of adding it as a new sub-list-entry)
//mlpadd(a); //stores a sub-list within [[mlist]] [back to default mode] adds sub-list a to [[mlist]]