Buy from Pierre, Marnie, Robin if they are in the shop but not on the counter, Willy if he is at the beach, and buy minerals or process geodes if Clint is doing an upgrade. As well as being able to access the Ice Cream Stand anytime in the summer.
You just have to access the shop as you normally would, by pressing the game's action button (default keyboard X, mouse RMB or controller A).

You can select shops to have this feature in the config.json. The file will appear after running the game with the mod for the first time.
You can also configure to let the Ice Cream Stand open all seasons, as well as to open the shop even if the owner is not there (as long as you can reach the counter).

Checked compatibility with LeonBlade's TreeTransplant 1.0.1 and Advize's Farm Expansion 3.0.4 (and 3.1). If you find any bug or incompatible mod, please report it.

There is a compatibility version for older versions of SMAPI.



Install:

1. Install the latest version of SMAPI.
2. Unzip the mod folder into Stardew Valley/Mods.
3. Run the game using SMAPI.

Configuration:

In config.json:
- Pierre: Lets you buy from Pierre's shop when he is in the shop (even if he is arranging the shelves)
- Ranch: Lets you buy from the Ranch when Marnie is on the ranch (including the kitchen (because takes hours to prepare a good meal))
- Carpenter: Lets you buy from Robin when she is the house
- FishShop: Lets you buy from Willy when he is at the beach
- Blacksmith: Lets you access the Blacksmith menu if Clint is upgrading a tool
- IceCreamStand: Lets you buy ice cream from the stand even if there is no one there
- IceCreamInAllSeasons: Enables you to buy ice cream in all seasons
- ShopsAlwaysOpen: Ignore the owner location (or season for the ice cream stand), so if you can reach the counter, you can buy from the shop.


Any problems or suggestions, please let me know.

Changelog:

Version 1.2.2:
- Updated for SV 1.3.36 and SMAPI 2.10.2.

Version 1.2.1:
- Updated for SMAPI 2.6/SDV 1.3 (thanks Slamerz for the help)

Version 1.2.0:
- Added blacksmith

Version 1.1.4:
- Fixes error when the game doesn't have the placeholder texture (for Farm Expansion mod)

Version 1.1.3:
- Add compatibility with the FarmExtension mod

Version 1.1.2:
- Fixed carpenter shop not opening if Robin is upgrading a building (if ShopsAlwaysOpen is enabled)

Version 1.1.1:
- Fixed ShopsAlwaysOpen not working for Marnie and Robin

Version 1.1:
- Added the fish shop
- Added option to buy even if the owner is not in the shop
- Released a compatibility version for older SMAPI versions

Version 1.0.1:
- Fixed controller support

Version 1.0:
- Initial release

See also:

My other mods
Source Code