I am referring to the apexcharts documentation to find if there is anyway to fix the size of each cell in the heatmap.

The problem happens when I tried to add more datapoints into the series, then the heatmap would automatically decrease the size of grids, making them almost invisible eventually, therefore, I want to either fix the size of the grid, or set a minimum size for it, so the grid would be still clickable.

Any help will be appreciated, thank you!