# Explore the POS screen The best way to learn about the POS screen is to see it in action! {% file src="/files/VzHPr8sd7EH6spcph0d2" %} If you are working offline or you simply prefer reading instead of videos, here is a quick introduction to the key features of the POS screen:
## Title bar In the title bar (A), at the top of the screen, you can change the size of the POS screen by selecting one of the pre-defined screen sizes. (You can also click and drag the edge of the screen until the screen is the desired size.) You will probably want the POS screen to fill the screen so it's easy to see customer information and transaction details.
You can also use either a high-contrast dark skin or a low-contrast light skin for the screen. Choose a skin that makes it easy for you to read the transaction details on the screen.
The title bar also shows information about POS, such as the store's weights and measures (WAM) certification number (not shown in screen shot), the POS software version, the name of the database that POS is connected to, the register number, the user name of the cashier who is logged in, and the current time. ## Transaction tab and optional Internet tab You will notice that there are two tabs (B) to the left of the screen. You will spend most of your time on the **Transaction** tab. Your store has the option to integrate a web site into POS on the **Internet** tab, such as a search site like Google, the store's e-commerce site, a supplier's site, or a shipping company's site. {% hint style="warning" %} Once the Internet tab is enabled, store employees can use it to navigate to various internet sites. This can expose the store to risk. {% endhint %}
## Lookup field A common feature of the POS screen is the lookup field (C). There are different kinds of lookup fields. The item lookup field is used to look up items. There is also a customer lookup field, a sales representative lookup field, a transaction lookup field, and so on. ## Transaction list The most important part of the POS screen is the transaction list (D). This is where you can see all of the items in a transaction, and details such as the item lookup code, name, price, item quantity, and so on. ## Transaction summaries Another important part of the POS screen is the transaction summary (E, F), below the transaction list. This is where you can easily see the number of items in the transaction, any savings the customer is getting because of sales or discounts, as well as the item subtotal, taxes, and transaction total. ## POS mode and transaction list controls Above the transaction list are three icons (G):
The first icon indicates the POS mode, such as sale, return, quote, work order, layaway, and so on. The default POS mode is sale. The icon that displays indicates the active POS mode. The second icon indicates whether new items will be added to the top or bottom of the transaction list. If the arrow is pointing up, new items will be added to the top of the transaction list. If the arrow is pointing down, new items will be added to the bottom of the transaction list. Click the icon to change the order. The third icon indicates whether roll up is on or off. If roll up is on and you scan the same item at different times during the transaction, the items are consolidated on one line in the transaction list. If roll up is off, each item displays on a separate line in the transaction list. {% hint style="info" %} Items will not roll up if any of the following conditions exist: there is a quantity discount applied to the item, the item is sold with a tag-along item, or the cashier must enter the item price in POS. {% endhint %} ## Function buttons Below the transaction summary is a row of function buttons (H). You can use these buttons to perform specific tasks in POS, such as looking up items or customers, tendering the sale, applying discounts, and so on. ## Optional keyboard Below the row of function buttons is an optional on-screen keyboard (I). You would use the on-screen keyboard if, for example, your store uses touchscreen monitors in POS lanes instead of regular computer keyboards. You can show and hide the keyboard by clicking the **Keyboard** drop-down button. ## Optional custom commands To the right of the screen you may see a list of buttons in the Custom Commands pane (J) or Task Pad pane. Your store has the option to define its own custom buttons to provide shortcuts for common tasks such as looking up customers or sales representatives, applying dollar or percent off discounts, or tendering common cash denominations such as 20s, 50s, or 100s. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.rmhpos.com/readme-1/exploring-the-pos-screen.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.