Changes

; <tt>\OnlyStep [''n''] ''[reserve]'' {...}</tt>: Show content only on the <tt>''n''</tt>^th step. Usage of the <tt>reserve</tt> keyword is diverted to section [[RawSteps#Reserving space]].

; <tt>\FromStep [''n''] ''[reserve]'' {...}</tt>

; <tt>\AfterStep [''n''] ''[reserve]'' {...}</tt>

; <tt>\UntilStep [''n''] ''[reserve]'' {...}</tt>

:: <tt>yes, </tt>: :: <tt><u>no</u></tt>:

: Enable or disable generation of steps generation.

The module supports subpage numbers. To number pages in a format such as: ''1/4, 2a/4, 2b/4, 2c/4, 3a/4, 3b/4, 4/4'', use the following code to generate page numbers. <texcode>\pagenumber{\characters\subpagenumber}/\lastpagenumber</texcode>  ==Usage example==  ===Preamble=== The following preamble enables page numbering as shown in [[RawSteps#Page numbers]] in an interaction menu. <texcode>\usemodule [pre-original]\usemodule [rsteps] % interaction menu example:% page number with alphabetic subpage number\startinteractionmenu[bottom] \placelist[chapter] [alternative=bottom,criterium=all,pagenumber=no] \\ \pagenumber{\characters\subpagenumber}/\lastpagenumber\stopinteractionmenu % setup example (default)\SetupSteps[defaultsection=Subject,reserve=no]</texcode>  ===Sectioning=== \StartSteps[Topic][Topic Title] This is work a topic slide. \NextStep Another step.\StopSteps \StartSteps[Subject][Subject Title 1] This is a subject slide. \NextStep Another step.\StopSteps \StartSteps[Subject Title 2] This is a subject (defaultsection) slide as well. \NextStep Another step.\StopSteps \StartSteps This slide comprises no section command. \NextStep Another step.\StopSteps</texcode>  ===Fancy stepping=== The following example illustrates the usage of the fancier stepping commands <tt>\OnlyStep</tt>, <tt>\UntilStep</tt>, <tt>\FromStep</tt>, and <tt>\HighlightStep</tt>. <texcode>\StartSteps[Slide Title]  \startitemize \item This will not change. \OnlyStep[2] {\item This appears only on step 2.} \UntilStep[4] {\item This will change on step 4.} \FromStep[4] {\item This has changed since step 4.} \HighlightStep[3]{\item This will be highlighted on step 3.} \stopitemize \StopSteps</texcode>  ===Reserving space=== The <tt>reserve</tt> keyword make the item appear as empty space when it is not active instead of not generating the item at all. It is particularly useful in progresstypesetting equations, as shown by the following example.''' <texcode>\StartSteps[Navier||Stokes equation]  \placeformula[eq:incompressibility] \startformula \vec\nabla\cdot\vec u = 0 \stopformula \placeformula[eq:NS] \startformula \frac{D\vec u}{Dt} = \FromStep[2][reserve]{-{\red \frac1\rho \vec\nabla p}} \FromStep[3][reserve]{+\;{\green \vec g}} \FromStep[4][reserve]{+\;{\blue \frac1\rho \vec\nabla\cdot S}} \stopformula Momentum transport: \NextStep \item {\red Pressure gradient} \par\NextStep \item {\green Gravity} \par\NextStep \item {\blue Stress (viscous, turbulent, Maxwell)} \StopSteps</texcode>