# 1.1 Access to the Sway Charts scripting framework (UDI vs UDIX)

When a UDI is added to a chart, it can optionally also be given access to the Sway Charts scripting framework. This lets it see any framework data such as the order list, and lets it carry out actions such as placing trades. In Sway Charts terminology, this turns the UDI into a UDIX.

Like anything with framework access, a UDIX can be “not just an indicator”. The ability to place trades means that a UDIX can implement a trading algo, and using the indicator features to draw its activity on the chart.

This guide only covers the core indicator functionality of drawing on the trading chart. The scripting framework is described separately:


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