props.py

import bpy 

class DroneShowSettings(bpy.types.PropertyGroup):
    
    drone_count: bpy.props.IntProperty(
        name="Number of Drones",
        default = 100,
        min = 1,
        max=1000,
        description = "Total number of drones in the show"
    )    
    
    rows_count: bpy.props.IntProperty(
        name="Rows",
        default = 10,
        min = 1,
        max=1000,
        description = "Total number of rows in the takeoff grid"
    )  
    
    cols_count: bpy.props.IntProperty(
        name="Columns",
        default = 10,
        min = 1,
        max=1000,
        description = "Total number of columns in the takeoff grid"
    )  
    
    horizontal_spacing: bpy.props.FloatProperty(
        name="Horizontal Spacing (m)",
        default = 3,
        min = 0.5,
        max=20,
        description = "Spacing between the columns in meters"
    )      
    
    vertical_spacing: bpy.props.FloatProperty(
        name="Vertical Spacing (m)",
        default = 3,
        min = 0.5,
        max=20,
        description = "Spacing between the rows in meters"
    )     

    drone_color: bpy.props.FloatVectorProperty(
        name="Color",
        description="LED color to apply on selected drones",
        subtype='COLOR',
        default=(1,1,1),
        min=0.0,
        max=1.0,
    )

    apply_to_all_drones: bpy.props.BoolProperty(
        name = "Apply to All Drones",
        description="Selected configurations will be applied to all existing drones",
        default=False

    )

    glow_strength: bpy.props.FloatProperty(
        name = "Glow Strength",
        description="Defines how strong are LEDs of selected drones",
        default=5.0,
        min=0.0,
        max = 100.0
    )


def register():
    bpy.utils.register_class(DroneShowSettings) 
    bpy.types.Scene.my_props = bpy.props.PointerProperty(type=DroneShowSettings)

def unregister():
    del bpy.types.Scene.my_props
    bpy.utils.unregister_class(DroneShowSettings)