more tasks in rtx51tiny?

Is it possible to increase the maximum number of tasks in RTX51TINY?
If it is possible how much effort would this need, and what would I
have to do?
Of course I could use RTX51 full, but can't spend those 6-8k of memory
and I don't need the message box and all the other features of the full
version.

thanks in advance for your help.

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