Formula limitation

Hi,

I need to make a calculator to calculate the cost of a door depending on some variables (dimensions, colors etc.)

However, it seems that big formulas like this aren’t supported. (check below).

I need that big formula because I want to make several doors calculation at one place playing around with conditional fields and so on (to hide/show fields). To be short, I want to duplicate the same initial fields if the person wants to make a second (or third, fourth etc) door calculation.

How can I do that else ?

( dropDown_field_id_0 + dropDown_field_id_4 + dropDown_field_id_9 + toggle_field_id_1 * quantity_field_id_2) + ( dropDown_field_id_6 + dropDown_field_id_47 + toggle_field_id_18 + dropDown_field_id_99 * quantity_field_id_210 ) + ( dropDown_field_id_611 + dropDown_field_id_4712 + toggle_field_id_1814 + dropDown_field_id_9915 * quantity_field_id_21018 ) + ( dropDown_field_id_61115 + dropDown_field_id_471216 + toggle_field_id_181417 + dropDown_field_id_991519 * quantity_field_id_2101820 ) + ( dropDown_field_id_6111522 + dropDown_field_id_47121622 + toggle_field_id_18141723 + dropDown_field_id_99151924 * quantity_field_id_210182025 ) + ( dropDown_field_id_611152226 + dropDown_field_id_4712162228 + toggle_field_id_1814172328 + dropDown_field_id_9915192429 * quantity_field_id_21018202530 ) + ( dropDown_field_id_61115222631 + dropDown_field_id_471216222832 + toggle_field_id_181417232834 + dropDown_field_id_991519242934 * quantity_field_id_2101820253035 ) + ( dropDown_field_id_6111522263136 + dropDown_field_id_47121622283237 + toggle_field_id_18141723283438 + dropDown_field_id_99151924293440 * quantity_field_id_210182025303540 ) + ( dropDown_field_id_611152226313641 + dropDown_field_id_4712162228323742 + toggle_field_id_1814172328343843 + dropDown_field_id_9915192429344044 * quantity_field_id_21018202530354046 ) + ( dropDown_field_id_61115222631364146 + dropDown_field_id_471216222832374247 + toggle_field_id_181417232834384348 + dropDown_field_id_991519242934404449 * quantity_field_id_2101820253035404650 )