Hello,

I write this explanation for another user, It may help you.

Here is the steps to create a cascade field.

You need to know that a cascade field is dependant of another field, in our case, a simple dropdown field.

First, you need to create this simple dropdown. For our example, we will call it ad_regions.

In this field, enter the correct values:
Name is for what is displayed and value is for what will be saved in the database.

for example :
- Name: Region 1, value: region_1
- Name: Region 2, value: region_2
- etc

Then save the field.

After that, create a new field and select the field type 'Cascade'.

In the values of this field, you will need to fill the 'parent field' first. Enter the name of the first field you've created. In our example 'ad_regions'

Then in the values, enter the ones you need, Name is for what is displayed, value is for what will be saved in the database and parent value is where you need to enter the value of the option from the parent field that will make the value appears in this field.

In our example :
- Name: Sub Region 1, value: subregion_1, parent value: region_1
- Name: Sub Region 2, value: subregion_2, parent value: region_1
- Name: Sub Region 3, value: subregion_3, parent value: region_2

In this example, if you select Region 1 in the parent field, the cascade field will display the sub regions 1 and 2.
And if you select the region 2, only the sub regions 3 will be displayed in the cascade field.

I hope this message will help you.

Best Regards.

You need to find the data on a website like geoname. Then create some SQL tables based on this. THen you can set adsmanager to use "external storage" to map to your tables. to avoid manually entry instead the field