Not really but you can divide your Macro dose elements amongst the remineralisation concentrates.
Of the Macro Elements these are the compounds I would use either in replacement or supplement to each other when targeting a specific GH and KH. Off the top of my head I have grouped the compounds so in solution they have a low chance of precipitive reactivity with each other at concentration.
Group A -
Calcium Chloride
Magnesium Chloride
Potassium Chloride
Calcium Nitrate
Magnesium Nitrate
Potassium Nitrate
Group B -
Calcium Sulphate
Magnesium Sulphate
Potassium Sulphate
Group C -
Potassium Carbonate
Potassium Bicarbonate
Potassium Phosphate
Group D - (requires preparation to increase solubility)
Calcium Carbonate
Magnesium Carbonate
How much you use in combination with each other depends on what element ratios and ppm nutrient levels you want to stay close to whilst targeting a specific GH and KH.
If you have all the base Micro Elements as Compounds then you can add those to their respective groups (A and B) to eliminate having to make a separate micro mix, you would still need to dose Iron separately though.
Dosing Micro in the dark gives plants a chance to uptake a bigger dose of Iron before the lights come on which will photodegrade the associated chelate (APFUK Micro is EDTA) dropping out the Iron. The other advantage to dosing before lights on is that with your CO2 injection profile the pH of the water should hopefully be below neutral and if preferable be around pH6.5 so that EDTA doesn’t break down further in above neutral conditions.