It looks like your best option is to use:

$table->deleteRows(?switches?, index, ?count?)
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and:

$table->insertRows(?switches?, index, ?count?)
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to manipulate the table rows or the two functions:

$table->get(first, ?last?)

$table->set(?row|col?, index, ?value?, ?index, value, ...?)
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to get previous contents and set new contents.