How do I enter US Gov Security income from Schedule K-1 on my 1040?

Turbo tax desktop does not allow me to show that a portion of the dividends on my Schedule K-1 are from US Government securities and therefore exempt from state (Michigan) tax. The entry on my Michigan 1040 only shows US Gov Security income included on my 1099-Div. The only way I've found to include the US Gov Security income from my Sch K-1 on my Michigan return is to override the value automatically generated by the software (from 1099 Div and 1099Int). If I override this value manually, the error check indicates the return may be rejected. What do I do?

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