Hello
I have a problem with the template: boutique
Please excuse my question, but I am bloody beginner.
I would like to display several modules (with pictures) at position "bottom 1a". The modules should be displayed across the entire page width.

I would like to sort the modules by date. Currently I have 9 modules. I have 3 modules on position "bottom 1a, 3 modules on 1b, and 3 modules on 1c.
The problem:
On the PC the modules are displayed in the following sequence: bottom 1a (modul 1), bottom 1b (modul 2), bottom 1c (modul 3), bottom 1a (modul 4) etc ...
On the mobile phone (responsive) the sequence is changed: bottom 1a (modul 1), bottom 1a (modul 4), bottom 1a (modul 7), bottom 1b (modul 2), bottom 1b (modul 5), etc ...

I would like to use the position: bottom 1a for ALL modules, 3 modules should be shown per line, then a new line ...
The advantage would be for me that I can simply sort the positions of the modules in the backend ...

If I insert several modules in position "bottom 1a", the modules are displayed below (not next to each other). How can I change this?

Please help me.
greetings: Peter