When operating switch and key display objects, you can set conditions to allow operation only when those conditions are met. This feature is called the interlock (lock) function.

1. Interlock Function for Switch Objects

From the top [Object] menu, you can apply interlock settings to the following types under [Lamp]:
Touch, Momentary, Bit Switch, Selector Switch, Screen Change, Custom.
These are configured in the [Touch Options] page of the object's properties.

In the [Touch Options] page, check [Interlock] and set the operation condition.
When the screen is touched to operate the object, it will only function if the specified condition is met.
If the condition is not satisfied, the object will not operate and a lock icon (LOCK) will be displayed.

2. Interlock Function for Numeric/String Key Display Objects

For numeric and string key display objects, the interlock function can be set on the [Input] page within the property screen.

Input is allowed only if the interlock condition is met.
If the condition is not met, input will not be permitted, and a lock icon (LOCK) will be displayed.