Method history_inuse_amount

plugins/workflow.cpp:323–323

    int history_amount(int idx) { return history_value(idx, HIST_AMOUNT); }
    int history_inuse_count(int idx) { return history_value(idx, HIST_INUSE_COUNT); }
    int history_inuse_amount(int idx) { return history_value(idx, HIST_INUSE_AMOUNT); }

    void updateHistory()
    {